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Is this crash exploitable ??

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carlmarq
Posts: 6
Joined: Fri Dec 21, 2012 3:59 am

Is this crash exploitable ??

Post by carlmarq » Sat Jan 12, 2013 3:29 pm

Hi Guys, can please check if this crash is ok for exploit.. i only see changes in $s1

Thanks

Code: Select all

Exception - Address load/inst fetch
Thread ID - 
Th Name   - 
Module ID - 
Mod Name  - 
EPC       - 0x0884D314
Cause     - 0x90000010
BadVAddr  - 0xA52D5504
Status    - 0x60088613
zr:0x00000000 at:0xDEADBEEF v0:0x091B5B10 v1:0x00000002
a0:0xA52D5504 a1:0x0890B868 a2:0x088E143C a3:0x00000000
t0:0x0880CAD4 t1:0x00000000 t2:0x091CB690 t3:0x00000000
t4:0x08910000 t5:0x08910000 t6:0x08910000 t7:0x00000000
s0:0x091CCE10 s1:0x27272727 s2:0x00000003 s3:0x000001E8
s4:0x088FB440 s5:0x091B7510 s6:0xDEADBEEF s7:0x088FB450
t8:0x091B7918 t9:0x091C95C8 k0:0x09FFFB00 k1:0x00000000
gp:0x00000000 sp:0x09FFF460 fp:0x090F7B10 ra:0x0884D31C
0x0884D314: 0x0E201C10 '.. .' - jal        0x08807040

host0:/> disasm $epc-150 300
0x0884D27C: 0x8C440004 '..D.' - lw         $a0, 4($v0)
0x0884D280: 0x24840238 '8..$' - addiu      $a0, $a0, 568
0x0884D284: 0x84850000 '....' - lh         $a1, 0($a0)
0x0884D288: 0x8C860004 '....' - lw         $a2, 4($a0)
0x0884D28C: 0x00C0F809 '....' - jalr       $a2
0x0884D290: 0x00452021 '! E.' - addu       $a0, $v0, $a1
0x0884D294: 0xAE020040 '@...' - sw         $v0, 64($s0)
0x0884D298: 0x3C040891 '...<' - lui        $a0, 0x891
0x0884D29C: 0x8C84B894 '....' - lw         $a0, -18284($a0)
0x0884D2A0: 0x0E20436F 'oC .' - jal        0x08810DBC
0x0884D2A4: 0x00408825 '%.@.' - move       $s1, $v0
0x0884D2A8: 0x02202025 '%  .' - move       $a0, $s1
0x0884D2AC: 0x0E2013E7 '.. .' - jal        0x08804F9C
0x0884D2B0: 0x00402825 '%(@.' - move       $a1, $v0
0x0884D2B4: 0x8E040004 '....' - lw         $a0, 4($s0)
0x0884D2B8: 0x8E050040 '@...' - lw         $a1, 64($s0)
0x0884D2BC: 0x24840070 'p..$' - addiu      $a0, $a0, 112
0x0884D2C0: 0x84860000 '....' - lh         $a2, 0($a0)
0x0884D2C4: 0x8C870004 '....' - lw         $a3, 4($a0)
0x0884D2C8: 0x00E0F809 '....' - jalr       $a3
0x0884D2CC: 0x02062021 '! ..' - addu       $a0, $s0, $a2
0x0884D2D0: 0x8E040040 '@...' - lw         $a0, 64($s0)
0x0884D2D4: 0x00002825 '%(..' - move       $a1, $zr
0x0884D2D8: 0x8C860004 '....' - lw         $a2, 4($a0)
0x0884D2DC: 0x24C60188 '...$' - addiu      $a2, $a2, 392
0x0884D2E0: 0x84C70000 '....' - lh         $a3, 0($a2)
0x0884D2E4: 0x8CC60004 '....' - lw         $a2, 4($a2)
0x0884D2E8: 0x00C0F809 '....' - jalr       $a2
0x0884D2EC: 0x00872021 '! ..' - addu       $a0, $a0, $a3
0x0884D2F0: 0x0E201C17 '.. .' - jal        0x0880705C
0x0884D2F4: 0x00000000 '....' - nop
0x0884D2F8: 0x8FD10008 '....' - lw         $s1, 8($fp)
0x0884D2FC: 0x12320007 '..2.' - beq        $s1, $s2, 0x0884D31C
0x0884D300: 0x00000000 '....' - nop
0x0884D304: 0x3C050891 '...<' - lui        $a1, 0x891
0x0884D308: 0x00112080 '. ..' - sll        $a0, $s1, 2
0x0884D30C: 0x24A5B868 'h..$' - addiu      $a1, $a1, -18328
0x0884D310: 0x00852021 '! ..' - addu       $a0, $a0, $a1
0x0884D314: 0x0E201C10 '.. .' - jal        0x08807040
0x0884D318: 0x8C840000 '....' - lw         $a0, 0($a0)
0x0884D31C: 0xAFB70170 'p...' - sw         $s7, 368($sp)
0x0884D320: 0xAFB20174 't...' - sw         $s2, 372($sp)
0x0884D324: 0x34120000 '...4' - li         $s2, 0x0
0x0884D328: 0x34130000 '...4' - li         $s3, 0x0
0x0884D32C: 0x34140000 '...4' - li         $s4, 0x0
0x0884D330: 0x34150000 '...4' - li         $s5, 0x0
0x0884D334: 0x0E201B2F '/. .' - jal        0x08806CBC
0x0884D338: 0x34160000 '...4' - li         $s6, 0x0
0x0884D33C: 0x8FB70170 'p...' - lw         $s7, 368($sp)
0x0884D340: 0x8FA50174 't...' - lw         $a1, 372($sp)
0x0884D344: 0x1225002A '*.%.' - beq        $s1, $a1, 0x0884D3F0
0x0884D348: 0x00402025 '% @.' - move       $a0, $v0
0x0884D34C: 0xAFA4016C 'l...' - sw         $a0, 364($sp)
0x0884D350: 0x27B20028 '(..'' - addiu      $s2, $sp, 40
0x0884D354: 0x3C050890 '...<' - lui        $a1, 0x890
0x0884D358: 0x27A60034 '4..'' - addiu      $a2, $sp, 52
0x0884D35C: 0x02402025 '% @.' - move       $a0, $s2
0x0884D360: 0x0E23864A 'J.#.' - jal        0x088E1928
0x0884D364: 0x24A5B3DC '...$' - addiu      $a1, $a1, -19492
0x0884D368: 0x3C050891 '...<' - lui        $a1, 0x891
0x0884D36C: 0x00112080 '. ..' - sll        $a0, $s1, 2
0x0884D370: 0x24A5B880 '...$' - addiu      $a1, $a1, -18304
0x0884D374: 0x00852021 '! ..' - addu       $a0, $a0, $a1
0x0884D378: 0x27B10038 '8..'' - addiu      $s1, $sp, 56
0x0884D37C: 0x8C850000 '....' - lw         $a1, 0($a0)
0x0884D380: 0x34160001 '...4' - li         $s6, 0x1
0x0884D384: 0x27A60044 'D..'' - addiu      $a2, $sp, 68
0x0884D388: 0x0E23864A 'J.#.' - jal        0x088E1928
0x0884D38C: 0x02202025 '%  .' - move       $a0, $s1
0x0884D390: 0x02C0A825 '%...' - move       $s5, $s6
0x0884D394: 0xAFB50178 'x...' - sw         $s5, 376($sp)
0x0884D398: 0x27B5001C '...'' - addiu      $s5, $sp, 28
0x0884D39C: 0x02A02025 '% ..' - move       $a0, $s5
0x0884D3A0: 0x02402825 '%(@.' - move       $a1, $s2
0x0884D3A4: 0x0E23A1CD '..#.' - jal        0x088E8734
0x0884D3A8: 0x02203025 '%0 .' - move       $a2, $s1
0x0884D3AC: 0x27B10048 'H..'' - addiu      $s1, $sp, 72
0x0884D3B0: 0x3C050890 '...<' - lui        $a1, 0x890
0x0884D3B4: 0x02C0A025 '%...' - move       $s4, $s6
0x0884D3B8: 0x27A60054 'T..'' - addiu      $a2, $sp, 84
0x0884D3BC: 0x02202025 '%  .' - move       $a0, $s1
0x0884D3C0: 0x0E23864A 'J.#.' - jal        0x088E1928
0x0884D3C4: 0x24A5B3EC '...$' - addiu      $a1, $a1, -19476
0x0884D3C8: 0x02C09825 '%...' - move       $s3, $s6
0x0884D3CC: 0x27A40010 '...'' - addiu      $a0, $sp, 16
0x0884D3D0: 0x02A02825 '%(..' - move       $a1, $s5
0x0884D3D4: 0x0E23A1CD '..#.' - jal        0x088E8734
0x0884D3D8: 0x02203025 '%0 .' - move       $a2, $s1
0x0884D3DC: 0x8FB10010 '....' - lw         $s1, 16($sp)
0x0884D3E0: 0x8FA4016C 'l...' - lw         $a0, 364($sp)
0x0884D3E4: 0x02C09025 '%...' - move       $s2, $s6
0x0884D3E8: 0x10000003 '....' - b          0x0884D3F8
0x0884D3EC: 0x8FB50178 'x...' - lw         $s5, 376($sp)
0x0884D3F0: 0x3C110890 '...<' - lui        $s1, 0x890
0x0884D3F4: 0x2631B400 '..1&' - addiu      $s1, $s1, -19456
0x0884D3F8: 0x4600D306 '...F' - mov.s      $fpr12, $fpr26
0x0884D3FC: 0x02202825 '%( .' - move       $a1, $s1
0x0884D400: 0x0E21BEA9 '..!.' - jal        0x0886FAA4
0x0884D404: 0x02E03025 '%0..' - move       $a2, $s7
0x0884D408: 0x1240000E '..@.' - beqz       $s2, 0x0884D444
0x0884D40C: 0xAE020044 'D...' - sw         $v0, 68($s0)
0x0884D410: 0x8FA40010 '....' - lw         $a0, 16($sp)
0x0884D414: 0x8FA50018 '....' - lw         $a1, 24($sp)
0x0884D418: 0x1080000A '....' - beqz       $a0, 0x0884D444
0x0884D41C: 0x00A42823 '#(..' - subu       $a1, $a1, $a0
0x0884D420: 0x2CA60081 '...,' - sltiu      $a2, $a1, 129
0x0884D424: 0x14C00005 '....' - bnez       $a2, 0x0884D43C
0x0884D428: 0x00000000 '....' - nop
0x0884D42C: 0x0E21CD22 '".!.' - jal        0x08873488
0x0884D430: 0x00000000 '....' - nop
0x0884D434: 0x10000003 '....' - b          0x0884D444
0x0884D438: 0x00000000 '....' - nop
0x0884D43C: 0x0E23C232 '2.#.' - jal        0x088F08C8
0x0884D440: 0x00000000 '....' - nop
0x0884D444: 0x1260000E '..`.' - beqz       $s3, 0x0884D480
0x0884D448: 0x00000000 '....' - nop
0x0884D44C: 0x8FA40048 'H...' - lw         $a0, 72($sp)
0x0884D450: 0x8FA50050 'P...' - lw         $a1, 80($sp)
0x0884D454: 0x1080000A '....' - beqz       $a0, 0x0884D480
0x0884D458: 0x00A42823 '#(..' - subu       $a1, $a1, $a0
0x0884D45C: 0x2CA60081 '...,' - sltiu      $a2, $a1, 129
0x0884D460: 0x14C00005 '....' - bnez       $a2, 0x0884D478
0x0884D464: 0x00000000 '....' - nop
0x0884D468: 0x0E21CD22 '".!.' - jal        0x08873488
0x0884D46C: 0x00000000 '....' - nop
0x0884D470: 0x10000003 '....' - b          0x0884D480
0x0884D474: 0x00000000 '....' - nop
0x0884D478: 0x0E23C232 '2.#.' - jal        0x088F08C8
0x0884D47C: 0x00000000 '....' - nop
0x0884D480: 0x1280000E '....' - beqz       $s4, 0x0884D4BC
0x0884D484: 0x00000000 '....' - nop
0x0884D488: 0x8FA4001C '....' - lw         $a0, 28($sp)
0x0884D48C: 0x8FA50024 '$...' - lw         $a1, 36($sp)
0x0884D490: 0x1080000A '....' - beqz       $a0, 0x0884D4BC
0x0884D494: 0x00A42823 '#(..' - subu       $a1, $a1, $a0
0x0884D498: 0x2CA60081 '...,' - sltiu      $a2, $a1, 129
0x0884D49C: 0x14C00005 '....' - bnez       $a2, 0x0884D4B4
0x0884D4A0: 0x00000000 '....' - nop
0x0884D4A4: 0x0E21CD22 '".!.' - jal        0x08873488
0x0884D4A8: 0x00000000 '....' - nop
0x0884D4AC: 0x10000003 '....' - b          0x0884D4BC
0x0884D4B0: 0x00000000 '....' - nop
0x0884D4B4: 0x0E23C232 '2.#.' - jal        0x088F08C8
0x0884D4B8: 0x00000000 '....' - nop
0x0884D4BC: 0x12A0000E '....' - beqz       $s5, 0x0884D4F8
0x0884D4C0: 0x00000000 '....' - nop
0x0884D4C4: 0x8FA40038 '8...' - lw         $a0, 56($sp)
0x0884D4C8: 0x8FA50040 '@...' - lw         $a1, 64($sp)
0x0884D4CC: 0x1080000A '....' - beqz       $a0, 0x0884D4F8
0x0884D4D0: 0x00A42823 '#(..' - subu       $a1, $a1, $a0
0x0884D4D4: 0x2CA60081 '...,' - sltiu      $a2, $a1, 129
0x0884D4D8: 0x14C00005 '....' - bnez       $a2, 0x0884D4F0
0x0884D4DC: 0x00000000 '....' - nop
0x0884D4E0: 0x0E21CD22 '".!.' - jal        0x08873488
0x0884D4E4: 0x00000000 '....' - nop
0x0884D4E8: 0x10000003 '....' - b          0x0884D4F8
0x0884D4EC: 0x00000000 '....' - nop
0x0884D4F0: 0x0E23C232 '2.#.' - jal        0x088F08C8
0x0884D4F4: 0x00000000 '....' - nop
0x0884D4F8: 0x52C0000F '...R' - beqzl      $s6, 0x0884D538
0x0884D4FC: 0x8E040044 'D...' - lw         $a0, 68($s0)
0x0884D500: 0x8FA40028 '(...' - lw         $a0, 40($sp)
0x0884D504: 0x8FA50030 '0...' - lw         $a1, 48($sp)
0x0884D508: 0x1080000A '....' - beqz       $a0, 0x0884D534
0x0884D50C: 0x00A42823 '#(..' - subu       $a1, $a1, $a0
0x0884D510: 0x2CA60081 '...,' - sltiu      $a2, $a1, 129
0x0884D514: 0x14C00005 '....' - bnez       $a2, 0x0884D52C
0x0884D518: 0x00000000 '....' - nop
0x0884D51C: 0x0E21CD22 '".!.' - jal        0x08873488
0x0884D520: 0x00000000 '....' - nop
0x0884D524: 0x10000004 '....' - b          0x0884D538
0x0884D528: 0x8E040044 'D...' - lw         $a0, 68($s0)
0x0884D52C: 0x0E23C232 '2.#.' - jal        0x088F08C8
0x0884D530: 0x00000000 '....' - nop
0x0884D534: 0x8E040044 'D...' - lw         $a0, 68($s0)
0x0884D538: 0x8C850004 '....' - lw         $a1, 4($a0)
0x0884D53C: 0x24A503B0 '...$' - addiu      $a1, $a1, 944
0x0884D540: 0x84A60000 '....' - lh         $a2, 0($a1)
0x0884D544: 0x8CA70004 '....' - lw         $a3, 4($a1)
0x0884D548: 0x00862021 '! ..' - addu       $a0, $a0, $a2
0x0884D54C: 0x00E0F809 '....' - jalr       $a3
0x0884D550: 0x2405FFFF '...$' - li         $a1, -1
0x0884D554: 0x8E040044 'D...' - lw         $a0, 68($s0)
0x0884D558: 0x8C850004 '....' - lw         $a1, 4($a0)
0x0884D55C: 0x8FA60168 'h...' - lw         $a2, 360($sp)
0x0884D560: 0x24A503C0 '...$' - addiu      $a1, $a1, 960
0x0884D564: 0x84A70000 '....' - lh         $a3, 0($a1)
0x0884D568: 0x8CA80004 '....' - lw         $t0, 4($a1)
0x0884D56C: 0x00872021 '! ..' - addu       $a0, $a0, $a3
0x0884D570: 0x0100F809 '....' - jalr       $t0
0x0884D574: 0x00C02825 '%(..' - move       $a1, $a2
0x0884D578: 0x8E040044 'D...' - lw         $a0, 68($s0)
0x0884D57C: 0x4600A306 '...F' - mov.s      $fpr12, $fpr20
0x0884D580: 0x8C850004 '....' - lw         $a1, 4($a0)
0x0884D584: 0x24A50078 'x..$' - addiu      $a1, $a1, 120
0x0884D588: 0x84A60000 '....' - lh         $a2, 0($a1)
0x0884D58C: 0x8CA50004 '....' - lw         $a1, 4($a1)
0x0884D590: 0x00A0F809 '....' - jalr       $a1
0x0884D594: 0x00862021 '! ..' - addu       $a0, $a0, $a2
0x0884D598: 0x8E040044 'D...' - lw         $a0, 68($s0)
0x0884D59C: 0x8C850004 '....' - lw         $a1, 4($a0)
0x0884D5A0: 0x24A50080 '...$' - addiu      $a1, $a1, 128
0x0884D5A4: 0x84A60000 '....' - lh         $a2, 0($a1)
0x0884D5A8: 0x8CA50004 '....' - lw         $a1, 4($a1)
0x0884D5AC: 0x00862021 '! ..' - addu       $a0, $a0, $a2
0x0884D5B0: 0x3C0641F0 '.A.<' - lui        $a2, 0x41F0
0x0884D5B4: 0x00A0F809 '....' - jalr       $a1
0x0884D5B8: 0x44866000 '.`.D' - mtc1       $a2, $fcr12
0x0884D5BC: 0x8E040004 '....' - lw         $a0, 4($s0)
0x0884D5C0: 0x8E050044 'D...' - lw         $a1, 68($s0)
0x0884D5C4: 0x24840070 'p..$' - addiu      $a0, $a0, 112
0x0884D5C8: 0x84860000 '....' - lh         $a2, 0($a0)
0x0884D5CC: 0x8C870004 '....' - lw         $a3, 4($a0)
0x0884D5D0: 0x00E0F809 '....' - jalr       $a3
0x0884D5D4: 0x02062021 '! ..' - addu       $a0, $s0, $a2
0x0884D5D8: 0x3C050890 '...<' - lui        $a1, 0x890
0x0884D5DC: 0x4600D306 '...F' - mov.s      $fpr12, $fpr26
0x0884D5E0: 0x3404012C ',..4' - li         $a0, 0x12C
0x0884D5E4: 0x02E03025 '%0..' - move       $a2, $s7
0x0884D5E8: 0x0E21BEA9 '..!.' - jal        0x0886FAA4
0x0884D5EC: 0x24A5B45C '\..$' - addiu      $a1, $a1, -19364
0x0884D5F0: 0xAE020048 'H...' - sw         $v0, 72($s0)
0x0884D5F4: 0x8E040048 'H...' - lw         $a0, 72($s0)
0x0884D5F8: 0x8C850004 '....' - lw         $a1, 4($a0)
0x0884D5FC: 0x24A503B0 '...$' - addiu      $a1, $a1, 944
0x0884D600: 0x84A60000 '....' - lh         $a2, 0($a1)
0x0884D604: 0x8CA70004 '....' - lw         $a3, 4($a1)
0x0884D608: 0x00862021 '! ..' - addu       $a0, $a0, $a2
0x0884D60C: 0x00E0F809 '....' - jalr       $a3
0x0884D610: 0x2405FFFF '...$' - li         $a1, -1
0x0884D614: 0x8E040048 'H...' - lw         $a0, 72($s0)
0x0884D618: 0x8C850004 '....' - lw         $a1, 4($a0)
0x0884D61C: 0x24A503C0 '...$' - addiu      $a1, $a1, 960
0x0884D620: 0x84A60000 '....' - lh         $a2, 0($a1)
0x0884D624: 0x8CA70004 '....' - lw         $a3, 4($a1)
0x0884D628: 0x3C050890 '...<' - lui        $a1, 0x890
0x0884D62C: 0x00862021 '! ..' - addu       $a0, $a0, $a2
0x0884D630: 0x00E0F809 '....' - jalr       $a3
0x0884D634: 0x24A5B470 'p..$' - addiu      $a1, $a1, -19344
0x0884D638: 0x8E040048 'H...' - lw         $a0, 72($s0)
0x0884D63C: 0x8C850004 '....' - lw         $a1, 4($a0)
0x0884D640: 0x24A50078 'x..$' - addiu      $a1, $a1, 120
0x0884D644: 0x84A60000 '....' - lh         $a2, 0($a1)
0x0884D648: 0x8CA50004 '....' - lw         $a1, 4($a1)
0x0884D64C: 0x00862021 '! ..' - addu       $a0, $a0, $a2
0x0884D650: 0x3C06C080 '...<' - lui        $a2, 0xC080
0x0884D654: 0x00A0F809 '....' - jalr       $a1
0x0884D658: 0x44866000 '.`.D' - mtc1       $a2, $fcr12
0x0884D65C: 0x8E040048 'H...' - lw         $a0, 72($s0)
0x0884D660: 0x8C850004 '....' - lw         $a1, 4($a0)
0x0884D664: 0x24A50080 '...$' - addiu      $a1, $a1, 128
0x0884D668: 0x84A60000 '....' - lh         $a2, 0($a1)
0x0884D66C: 0x8CA50004 '....' - lw         $a1, 4($a1)
0x0884D670: 0x00862021 '! ..' - addu       $a0, $a0, $a2
0x0884D674: 0x3C06422C ',B.<' - lui        $a2, 0x422C
0x0884D678: 0x00A0F809 '....' - jalr       $a1
0x0884D67C: 0x44866000 '.`.D' - mtc1       $a2, $fcr12
0x0884D680: 0x8E040004 '....' - lw         $a0, 4($s0)
0x0884D684: 0x8E050048 'H...' - lw         $a1, 72($s0)
0x0884D688: 0x24840070 'p..$' - addiu      $a0, $a0, 112
0x0884D68C: 0x84860000 '....' - lh         $a2, 0($a0)
0x0884D690: 0x8C870004 '....' - lw         $a3, 4($a0)
0x0884D694: 0x00E0F809 '....' - jalr       $a3
0x0884D698: 0x02062021 '! ..' - addu       $a0, $s0, $a2
0x0884D69C: 0x8E040044 'D...' - lw         $a0, 68($s0)
0x0884D6A0: 0x00002825 '%(..' - move       $a1, $zr
0x0884D6A4: 0x8C860004 '....' - lw         $a2, 4($a0)
0x0884D6A8: 0x24C60188 '...$' - addiu      $a2, $a2, 392
0x0884D6AC: 0x84C70000 '....' - lh         $a3, 0($a2)
0x0884D6B0: 0x8CC60004 '....' - lw         $a2, 4($a2)
0x0884D6B4: 0x00C0F809 '....' - jalr       $a2
0x0884D6B8: 0x00872021 '! ..' - addu       $a0, $a0, $a3
0x0884D6BC: 0x8E040048 'H...' - lw         $a0, 72($s0)
0x0884D6C0: 0x00002825 '%(..' - move       $a1, $zr
0x0884D6C4: 0x8C860004 '....' - lw         $a2, 4($a0)
0x0884D6C8: 0x24C60188 '...$' - addiu      $a2, $a2, 392
0x0884D6CC: 0x84C70000 '....' - lh         $a3, 0($a2)
0x0884D6D0: 0x8CC60004 '....' - lw         $a2, 4($a2)
0x0884D6D4: 0x00C0F809 '....' - jalr       $a2
0x0884D6D8: 0x00872021 '! ..' - addu       $a0, $a0, $a3
0x0884D6DC: 0x3C050890 '...<' - lui        $a1, 0x890
0x0884D6E0: 0x3C110891 '...<' - lui        $s1, 0x891
0x0884D6E4: 0x27B20058 'X..'' - addiu      $s2, $sp, 88
0x0884D6E8: 0x24B3B478 'x..$' - addiu      $s3, $a1, -19336
0x0884D6EC: 0x8E24B8A8 '..$.' - lw         $a0, -18264($s1)
0x0884D6F0: 0x02602825 '%(`.' - move       $a1, $s3
0x0884D6F4: 0x0E21C5E4 '..!.' - jal        0x08871790
0x0884D6F8: 0x02403025 '%0@.' - move       $a2, $s2
0x0884D6FC: 0x3C040890 '...<' - lui        $a0, 0x890
0x0884D700: 0x27B40060 '`..'' - addiu      $s4, $sp, 96
0x0884D704: 0x2495B484 '...$' - addiu      $s5, $a0, -19324
0x0884D708: 0x8FC60004 '....' - lw         $a2, 4($fp)
0x0884D70C: 0x02802025 '% ..' - move       $a0, $s4
0x0884D710: 0x0E21E6A4 '..!.' - jal        0x08879A90
0x0884D714: 0x02A02825 '%(..' - move       $a1, $s5
0x0884D718: 0x27A60160 '`..'' - addiu      $a2, $sp, 352
0x0884D71C: 0x02802025 '% ..' - move       $a0, $s4
0x0884D720: 0x0E21C5E4 '..!.' - jal        0x08871790
0x0884D724: 0x02602825 '%(`.' - move       $a1, $s3
0x0884D728: 0xC7AC0058 'X...' - lwc1       $fpr12, 88($sp)
host0:/>
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xerpi
HBL Collaborator
Posts: 139
Joined: Sat Apr 23, 2011 10:45 am
Location: Barcelona

Re: Is this crash exploitable ??

Post by xerpi » Sat Jan 12, 2013 4:48 pm

Tell me the function at: 0x7C7040 (you can see it on the function imports).

Look at this part:

Code: Select all

lui        $a1, 0x891
sll        $a0, $s1, 2
addiu      $a1, $a1, -18328
addu       $a0, $a0, $a1
jal        0x08807040
The first thing it does is the lui (load upper immediate) so: $a1 = 0x08910000
Then it shift the $s1 register two bits left ($s1 is the register you control) and it stores the result on $a0, so: $a0 = $s1<<2
As $s1 is 0x27272727, if we shift this number 2 bits lefts (multiply by 4) we get: 0x9C9C9C9C on $a0.
Then it adds -18328 (so it subs 18328) to $a1, after this, $a1 is: 0x0890B868
The last thing it does before the crash is adding $a0 and $a1 to $a0 ($a0 += $a1 on C), with numbers it's: $a0 = 0x9C9C9C9C + 0x0890B868 and this is 0xA52D5504, as you can see this is the value you have on the crash.
The last instruction is a jump to 0x08807040 so if we knew the function it is, as we can control the first argument we can do something,but anyways, I think we won't do much thing controlling only $s1.
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carlmarq
Posts: 6
Joined: Fri Dec 21, 2012 3:59 am

Re: Is this crash exploitable ??

Post by carlmarq » Sun Jan 13, 2013 6:02 am

Hi Xerpi,

Thanks for the reply.. here is the module info of the game. I hope we can dig something here.

Code: Select all

PRXTool v1.0 : (c) TyRaNiD 2k6
Loaded PRX eboot.bin successfully
Module information

Name:    
Attrib:  0000
Version: 1.1
GP:      00000000

Exports:
Export 0, Name syslib, Functions 2, Variables 4, flags 80000000
Functions:
0xD632ACDB [0x00073E08] - module_start
0xCEE8593C [0x00074210] - module_stop
Variables:
0xF01D73A7 [0x000F4640] - module_info
0x11B97506 [0x000F8228] - syslib_11B97506
0x0F7C276C [0x000F9728] - module_start_thread_parameter
0xCF0CC697 [0x000F9738] - module_stop_thread_parameter

Imports:
Import 0, Name sceUmdUser, Functions 5, Variables 0, flags 40010011
Functions:
0x46EBB729 [0x000F447C] - sceUmdCheckMedium
0x4A9E5E29 [0x000F4484] - sceUmdWaitDriveStatCB
0x6B4A146C [0x000F448C] - sceUmdGetDriveStat
0xAEE7404D [0x000F4494] - sceUmdRegisterUMDCallBack
0xC6183D47 [0x000F449C] - sceUmdActivate
Import 1, Name sceImpose, Functions 1, Variables 0, flags 40010011
Functions:
0x36AA6E91 [0x000F4474] - sceImpose_36AA6E91
Import 2, Name sceUtility, Functions 5, Variables 0, flags 40010011
Functions:
0x2A2B3DE0 [0x000F444C] - sceUtility_2A2B3DE0
0x50C4CD57 [0x000F4454] - sceUtilitySavedataInitStart
0x8874DBE0 [0x000F445C] - sceUtilitySavedataGetStatus
0x9790B33C [0x000F4464] - sceUtilitySavedataShutdownStart
0xD4B95FFB [0x000F446C] - sceUtilitySavedataUpdate
Import 3, Name scePower, Functions 1, Variables 0, flags 40010011
Functions:
0x04B7766E [0x000F4444] - scePowerRegisterCallback
Import 4, Name IoFileMgrForUser, Functions 12, Variables 0, flags 40010011
Functions:
0x42EC03AC [0x000F43E4] - sceIoWrite
0x54F5FB11 [0x000F43EC] - sceIoDevctl
0x6A638D83 [0x000F43F4] - sceIoRead
0x71B19E77 [0x000F43FC] - sceIoLseekAsync
0x779103A0 [0x000F4404] - sceIoRename
0x810C4BC3 [0x000F440C] - sceIoClose
0x89AA9906 [0x000F4414] - sceIoOpenAsync
0xA0B5A7C2 [0x000F441C] - sceIoReadAsync
0xACE946E8 [0x000F4424] - sceIoGetstat
0x109F50BC [0x000F442C] - sceIoOpen
0x27EB27B8 [0x000F4434] - sceIoLseek
0x35DBD746 [0x000F443C] - sceIoWaitAsyncCB
Import 5, Name Kernel_Library, Functions 5, Variables 0, flags 00010011
Functions:
0x092968F4 [0x000F43BC] - sceKernelCpuSuspendIntr
0xA089ECA4 [0x000F43C4] - Kernel_Library_A089ECA4
0x293B45B8 [0x000F43CC] - Kernel_Library_293B45B8
0x5F10D406 [0x000F43D4] - sceKernelCpuResumeIntr
0x1839852A [0x000F43DC] - Kernel_Library_1839852A
Import 6, Name LoadExecForUser, Functions 2, Variables 0, flags 40010011
Functions:
0x05572A5F [0x000F43AC] - sceKernelExitGame
0x4AC57943 [0x000F43B4] - sceKernelRegisterExitCallback
Import 7, Name ModuleMgrForUser, Functions 5, Variables 0, flags 40010011
Functions:
0x2E0911AA [0x000F4384] - sceKernelUnloadModule
0xD1FF982A [0x000F438C] - sceKernelStopModule
0xD8B73127 [0x000F4394] - ModuleMgrForUser_D8B73127
0xF0A26395 [0x000F439C] - ModuleMgrForUser_F0A26395
0x8F2DF740 [0x000F43A4] - ModuleMgrForUser_8F2DF740
Import 8, Name StdioForUser, Functions 3, Variables 0, flags 40010011
Functions:
0x172D316E [0x000F436C] - sceKernelStdin
0xA6BAB2E9 [0x000F4374] - sceKernelStdout
0xF78BA90A [0x000F437C] - sceKernelStderr
Import 9, Name SysMemUserForUser, Functions 6, Variables 0, flags 40000011
Functions:
0x13A5ABEF [0x000F433C] - SysMemUserForUser_13A5ABEF
0xB6D61D02 [0x000F4344] - sceKernelFreePartitionMemory
0xF77D77CB [0x000F434C] - SysMemUserForUser_F77D77CB
0x237DBD4F [0x000F4354] - sceKernelAllocPartitionMemory
0x358CA1BB [0x000F435C] - SysMemUserForUser_358CA1BB
0x9D9A5BA1 [0x000F4364] - sceKernelGetBlockHeadAddr
Import 10, Name ThreadManForUser, Functions 25, Variables 0, flags 40010011
Functions:
0xD6DA4BA1 [0x000F4274] - sceKernelCreateSema
0xE81CAF8F [0x000F427C] - sceKernelCreateCallback
0xEA748E31 [0x000F4284] - sceKernelChangeCurrentThreadAttr
0xF475845D [0x000F428C] - sceKernelStartThread
0xF8170FBE [0x000F4294] - ThreadManForUser_F8170FBE
0x28B6489C [0x000F429C] - sceKernelDeleteSema
0x349D6D6C [0x000F42A4] - sceKernelCheckCallback
0x369ED59D [0x000F42AC] - sceKernelGetSystemTimeLow
0x3F53E640 [0x000F42B4] - sceKernelSignalSema
0x446D8DE6 [0x000F42BC] - sceKernelCreateThread
0x68DA9E36 [0x000F42C4] - sceKernelDelayThreadCB
0x6B30100F [0x000F42CC] - ThreadManForUser_6B30100F
0x6D212BAC [0x000F42D4] - sceKernelWaitSemaCB
0x809CE29B [0x000F42DC] - sceKernelExitDeleteThread
0x82826F70 [0x000F42E4] - sceKernelSleepThreadCB
0xAA73C935 [0x000F42EC] - sceKernelExitThread
0xB011B11F [0x000F42F4] - ThreadManForUser_B011B11F
0xB7D098C6 [0x000F42FC] - ThreadManForUser_B7D098C6
0xCEADEB47 [0x000F4304] - sceKernelDelayThread
0x1FB15A32 [0x000F430C] - sceKernelSetEventFlag
0xEF9E4C70 [0x000F4314] - sceKernelDeleteEventFlag
0x278C0DF5 [0x000F431C] - sceKernelWaitThreadEnd
0x402FCF22 [0x000F4324] - sceKernelWaitEventFlag
0x55C20A00 [0x000F432C] - sceKernelCreateEventFlag
0x9FA03CD3 [0x000F4334] - sceKernelDeleteThread
Import 11, Name UtilsForUser, Functions 4, Variables 0, flags 40010011
Functions:
0x71EC4271 [0x000F4254] - sceKernelLibcGettimeofday
0x79D1C3FA [0x000F425C] - sceKernelDcacheWritebackAll
0x91E4F6A7 [0x000F4264] - sceKernelLibcClock
0x27CC57F0 [0x000F426C] - sceKernelLibcTime
Import 12, Name sceCtrl, Functions 2, Variables 0, flags 40010011
Functions:
0x1F4011E6 [0x000F4244] - sceCtrlSetSamplingMode
0x1F803938 [0x000F424C] - sceCtrlReadBufferPositive
Import 13, Name sceDisplay, Functions 3, Variables 0, flags 40010011
Functions:
0x0E20F177 [0x000F422C] - sceDisplaySetMode
0x289D82FE [0x000F4234] - sceDisplaySetFrameBuf
0x46F186C3 [0x000F423C] - sceDisplayWaitVblankStartCB
Import 14, Name sceGe_user, Functions 4, Variables 0, flags 40010011
Functions:
0x03444EB4 [0x000F420C] - sceGeListSync
0xAB49E76A [0x000F4214] - sceGeListEnQueue
0xB287BD61 [0x000F421C] - sceGeDrawSync
0xE47E40E4 [0x000F4224] - sceGeEdramGetAddr
Import 15, Name sceAudio, Functions 13, Variables 0, flags 40010011
Functions:
0x01562BA3 [0x000F41A4] - sceAudio_01562BA3
0x2D53F36E [0x000F41AC] - sceAudio_2D53F36E
0x43196845 [0x000F41B4] - sceAudio_43196845
0x647CEF33 [0x000F41BC] - sceAudio_647CEF33
0x136CAF51 [0x000F41C4] - sceAudioOutputBlocking
0x13F592BC [0x000F41CC] - sceAudioOutputPannedBlocking
0x5EC81C55 [0x000F41D4] - sceAudioChReserve
0x6FC46853 [0x000F41DC] - sceAudioChRelease
0x95FD0C2D [0x000F41E4] - sceAudioChangeChannelConfig
0xB011922F [0x000F41EC] - sceAudio_B011922F
0xB7E1D8E7 [0x000F41F4] - sceAudioChangeChannelVolume
0xCB2E439E [0x000F41FC] - sceAudioSetChannelDataLen
0xE2D56B2D [0x000F4204] - sceAudioOutputPanned
Import 16, Name sceSasCore, Functions 27, Variables 0, flags 40090011
Functions:
0x019B25EB [0x000F40CC] - sceSasCore_019B25EB
0x07F58C24 [0x000F40D4] - sceSasCore_07F58C24
0x267A6DD2 [0x000F40DC] - sceSasCore_267A6DD2
0x2C8E6AB3 [0x000F40E4] - sceSasCore_2C8E6AB3
0x33D4AB37 [0x000F40EC] - sceSasCore_33D4AB37
0x42778A9F [0x000F40F4] - sceSasCore_42778A9F
0x440CA7D8 [0x000F40FC] - sceSasCore_440CA7D8
0x50A14DFC [0x000F4104] - sceSasCore_50A14DFC
0x5F9529F6 [0x000F410C] - sceSasCore_5F9529F6
0x68A46B95 [0x000F4114] - sceSasCore_68A46B95
0x74AE582A [0x000F411C] - sceSasCore_74AE582A
0x76F01ACA [0x000F4124] - sceSasCore_76F01ACA
0x787D04D5 [0x000F412C] - sceSasCore_787D04D5
0x99944089 [0x000F4134] - sceSasCore_99944089
0x9EC3676A [0x000F413C] - sceSasCore_9EC3676A
0xA0CF2FA4 [0x000F4144] - sceSasCore_A0CF2FA4
0xA3589D81 [0x000F414C] - sceSasCore_A3589D81
0xAD84D37F [0x000F4154] - sceSasCore_AD84D37F
0xB7660A23 [0x000F415C] - sceSasCore_B7660A23
0xBD11B7C2 [0x000F4164] - sceSasCore_BD11B7C2
0xCBCD4F79 [0x000F416C] - sceSasCore_CBCD4F79
0xD1E0A01E [0x000F4174] - sceSasCore_D1E0A01E
0xD5A229C9 [0x000F417C] - sceSasCore_D5A229C9
0xE175EF66 [0x000F4184] - sceSasCore_E175EF66
0xE1CD9561 [0x000F418C] - sceSasCore_E1CD9561
0xE855BF76 [0x000F4194] - sceSasCore_E855BF76
0xF983B186 [0x000F419C] - sceSasCore_F983B186
Import 17, Name sceAtrac3plus, Functions 15, Variables 0, flags 00090011
Functions:
0x0E2A73AB [0x000F4054] - sceAtracSetData
0x2DD3E298 [0x000F405C] - sceAtrac3plus_2DD3E298
0x31668BAA [0x000F4064] - sceAtracGetChannel
0x5CF9D852 [0x000F406C] - sceAtrac3plus_5CF9D852
0x5D268707 [0x000F4074] - sceAtracGetStreamDataInfo
0x61EB33F5 [0x000F407C] - sceAtracReleaseAtracID
0x644E5607 [0x000F4084] - sceAtracResetPlayPosition
0x6A8C3CD5 [0x000F408C] - sceAtracDecodeData
0x7A20E7AF [0x000F4094] - sceAtracSetDataAndGetID
0x7DB31251 [0x000F409C] - sceAtracAddStreamData
0x868120B5 [0x000F40A4] - sceAtracSetLoopNum
0x9AE849A7 [0x000F40AC] - sceAtracGetRemainFrame
0xA2BBA8BE [0x000F40B4] - sceAtracGetSoundSample
0xA554A158 [0x000F40BC] - sceAtracGetBitrate
0xD6A5F2F7 [0x000F40C4] - sceAtracGetMaxSample
Import 18, Name sceMp3, Functions 10, Variables 0, flags 00090011
Functions:
0x07EC321A [0x000F4004] - sceMp3_07EC321A
0x0DB149F4 [0x000F400C] - sceMp3_0DB149F4
0x35750070 [0x000F4014] - sceMp3_35750070
0x3C2FA058 [0x000F401C] - sceMp3_3C2FA058
0x3CEF484F [0x000F4024] - sceMp3_3CEF484F
0x44E07129 [0x000F402C] - sceMp3_44E07129
0xA703FE0F [0x000F4034] - sceMp3_A703FE0F
0xD021C0FB [0x000F403C] - sceMp3_D021C0FB
0xD0A56296 [0x000F4044] - sceMp3_D0A56296
0xF5478233 [0x000F404C] - sceMp3_F5478233
Done

xerpi
HBL Collaborator
Posts: 139
Joined: Sat Apr 23, 2011 10:45 am
Location: Barcelona

Re: Is this crash exploitable ??

Post by xerpi » Sun Jan 13, 2013 9:08 am

Make disasm 0x08807040 50


I have seen something very interesting:

Code: Select all

lw         $a2, 4($a0)
jalr       $a2
We have to know the registers at 0x0884D28C, so set a breakpoint there (bpset).

carlmarq
Posts: 6
Joined: Fri Dec 21, 2012 3:59 am

Re: Is this crash exploitable ??

Post by carlmarq » Sun Jan 13, 2013 12:41 pm

here is the disasm. I also disasm the jumps..

Code: Select all

Exception - Address load/inst fetch
Thread ID - 
Th Name   - 
Module ID - 
Mod Name  - 
EPC       - 0x0884D314
Cause     - 0x90000010
BadVAddr  - 0xA52D5504
Status    - 0x60088613
zr:0x00000000 at:0xDEADBEEF v0:0x091B5B10 v1:0x00000002
a0:0xA52D5504 a1:0x0890B868 a2:0x088E143C a3:0x00000000
t0:0x0880CAD4 t1:0x00000000 t2:0x091CB690 t3:0x00000000
t4:0x08910000 t5:0x08910000 t6:0x08910000 t7:0x00000000
s0:0x091CCE10 s1:0x27272727 s2:0x00000003 s3:0x000001E8
s4:0x088FB440 s5:0x091B7510 s6:0xDEADBEEF s7:0x088FB450
t8:0x091B7918 t9:0x091C95C8 k0:0x09FFFB00 k1:0x00000000
gp:0x00000000 sp:0x09FFF460 fp:0x090F7B10 ra:0x0884D31C
0x0884D314: 0x0E201C10 '.. .' - jal        0x08807040
disasm 0x08807040 50
0x08807040: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x08807044: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x08807048: 0x0E21DA28 '(.!.' - jal        0x088768A0
0x0880704C: 0x00000000 '....' - nop
0x08807050: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x08807054: 0x03E00008 '....' - jr         $ra
0x08807058: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x0880705C: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x08807060: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x08807064: 0x0E21DA0F '..!.' - jal        0x0887683C
0x08807068: 0x00000000 '....' - nop
0x0880706C: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x08807070: 0x03E00008 '....' - jr         $ra
0x08807074: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x08807078: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x0880707C: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x08807080: 0x0E21DA8F '..!.' - jal        0x08876A3C
0x08807084: 0x00000000 '....' - nop
0x08807088: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x0880708C: 0x03E00008 '....' - jr         $ra
0x08807090: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x08807094: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x08807098: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x0880709C: 0x0E21DAA1 '..!.' - jal        0x08876A84
0x088070A0: 0x00000000 '....' - nop
0x088070A4: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x088070A8: 0x03E00008 '....' - jr         $ra
0x088070AC: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x088070B0: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x088070B4: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x088070B8: 0x0E21DA7F '..!.' - jal        0x088769FC
0x088070BC: 0x00000000 '....' - nop
0x088070C0: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x088070C4: 0x03E00008 '....' - jr         $ra
0x088070C8: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x088070CC: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x088070D0: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x088070D4: 0x0E21DAD3 '..!.' - jal        0x08876B4C
0x088070D8: 0x00000000 '....' - nop
0x088070DC: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x088070E0: 0x03E00008 '....' - jr         $ra
0x088070E4: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x088070E8: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x088070EC: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x088070F0: 0x0E21DAE6 '..!.' - jal        0x08876B98
0x088070F4: 0x00000000 '....' - nop
0x088070F8: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x088070FC: 0x03E00008 '....' - jr         $ra
0x08807100: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x08807104: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16

host0:/> disasm 0x088768A0 300
0x088768A0: 0x27BDFED0 '...'' - addiu      $sp, $sp, -304
0x088768A4: 0xAFB30114 '....' - sw         $s3, 276($sp)
0x088768A8: 0xAFB40118 '....' - sw         $s4, 280($sp)
0x088768AC: 0xAFB5011C '....' - sw         $s5, 284($sp)
0x088768B0: 0x3C1309E8 '...<' - lui        $s3, 0x9E8
0x088768B4: 0x3C140891 '...<' - lui        $s4, 0x891
0x088768B8: 0x3C150891 '...<' - lui        $s5, 0x891
0x088768BC: 0xAFB00108 '....' - sw         $s0, 264($sp)
0x088768C0: 0xAFB1010C '....' - sw         $s1, 268($sp)
0x088768C4: 0xAFB20110 '....' - sw         $s2, 272($sp)
0x088768C8: 0xAFBF0120 ' ...' - sw         $ra, 288($sp)
0x088768CC: 0x0E21DA0F '..!.' - jal        0x0887683C
0x088768D0: 0xAFA40104 '....' - sw         $a0, 260($sp)
0x088768D4: 0x3C050890 '...<' - lui        $a1, 0x890
0x088768D8: 0x3C060890 '...<' - lui        $a2, 0x890
0x088768DC: 0x3C080890 '...<' - lui        $t0, 0x890
0x088768E0: 0x8FA70104 '....' - lw         $a3, 260($sp)
0x088768E4: 0x03A02025 '% ..' - move       $a0, $sp
0x088768E8: 0x24A5D6D0 '...$' - addiu      $a1, $a1, -10544
0x088768EC: 0x24C6D6D8 '...$' - addiu      $a2, $a2, -10536
0x088768F0: 0x0E21E6A4 '..!.' - jal        0x08879A90
0x088768F4: 0x2508D6EC '...%' - addiu      $t0, $t0, -10516
0x088768F8: 0x34100000 '...4' - li         $s0, 0x0
0x088768FC: 0x3411002F '/..4' - li         $s1, 0x2F
0x08876900: 0x3412005C '\..4' - li         $s2, 0x5C
0x08876904: 0x0E21E9F1 '..!.' - jal        0x0887A7C4
0x08876908: 0x03A02025 '% ..' - move       $a0, $sp
0x0887690C: 0x0202202B '+ ..' - sltu       $a0, $s0, $v0
0x08876910: 0x10800006 '....' - beqz       $a0, 0x0887692C
0x08876914: 0x03B02021 '! ..' - addu       $a0, $sp, $s0
0x08876918: 0x80850000 '....' - lb         $a1, 0($a0)
0x0887691C: 0x50B10001 '...P' - beql       $a1, $s1, 0x08876924
0x08876920: 0xA0920000 '....' - sb         $s2, 0($a0)
0x08876924: 0x1000FFF7 '....' - b          0x08876904
0x08876928: 0x26100001 '...&' - addiu      $s0, $s0, 1
0x0887692C: 0x8E644B58 'XKd.' - lw         $a0, 19288($s3)
0x08876930: 0xAFA00100 '....' - sw         $zr, 256($sp)
0x08876934: 0x27A50100 '...'' - addiu      $a1, $sp, 256
0x08876938: 0x0E220F6B 'k.".' - jal        0x08883DAC
0x0887693C: 0x00003025 '%0..' - move       $a2, $zr
0x08876940: 0x8E644B58 'XKd.' - lw         $a0, 19288($s3)
0x08876944: 0x2688D390 '...&' - addiu      $t0, $s4, -11376
0x08876948: 0x03A02825 '%(..' - move       $a1, $sp
0x0887694C: 0x340600A8 '...4' - li         $a2, 0xA8
0x08876950: 0x0E2210F1 '..".' - jal        0x088843C4
0x08876954: 0x00003825 '%8..' - move       $a3, $zr
0x08876958: 0x0E21D395 '..!.' - jal        0x08874E54
0x0887695C: 0x00402025 '% @.' - move       $a0, $v0
0x08876960: 0x8E84D390 '....' - lw         $a0, -11376($s4)
0x08876964: 0x14800006 '....' - bnez       $a0, 0x08876980
0x08876968: 0x00000000 '....' - nop
0x0887696C: 0x3C040890 '...<' - lui        $a0, 0x890
0x08876970: 0x03A02825 '%(..' - move       $a1, $sp
0x08876974: 0x0E21E5F3 '..!.' - jal        0x088797CC
0x08876978: 0x2484D6F4 '...$' - addiu      $a0, $a0, -10508
0x0887697C: 0x8E84D390 '....' - lw         $a0, -11376($s4)
0x08876980: 0x26A6D38C '...&' - addiu      $a2, $s5, -11380
0x08876984: 0x0E221695 '..".' - jal        0x08885A54
0x08876988: 0x00002825 '%(..' - move       $a1, $zr
0x0887698C: 0x8EA4D38C '....' - lw         $a0, -11380($s5)
0x08876990: 0x14800003 '....' - bnez       $a0, 0x088769A0
0x08876994: 0x00000000 '....' - nop
0x08876998: 0x10000001 '....' - b          0x088769A0
0x0887699C: 0x8E84D390 '....' - lw         $a0, -11376($s4)
0x088769A0: 0xAEA4D38C '....' - sw         $a0, -11380($s5)
0x088769A4: 0x0E2217F9 '..".' - jal        0x08885FE4
0x088769A8: 0x34050002 '...4' - li         $a1, 0x2
0x088769AC: 0x8E644B58 'XKd.' - lw         $a0, 19288($s3)
0x088769B0: 0x3C100891 '...<' - lui        $s0, 0x891
0x088769B4: 0x8EA6D38C '....' - lw         $a2, -11380($s5)
0x088769B8: 0x2405FFFF '...$' - li         $a1, -1
0x088769BC: 0x00003825 '%8..' - move       $a3, $zr
0x088769C0: 0x0E22119F '..".' - jal        0x0888467C
0x088769C4: 0x2608D394 '...&' - addiu      $t0, $s0, -11372
0x088769C8: 0x3C053F80 '.?.<' - lui        $a1, 0x3F80
0x088769CC: 0x8E04D394 '....' - lw         $a0, -11372($s0)
0x088769D0: 0x0E22191D '..".' - jal        0x08886474
0x088769D4: 0x44856000 '.`.D' - mtc1       $a1, $fcr12
0x088769D8: 0x8FB00108 '....' - lw         $s0, 264($sp)
0x088769DC: 0x8FB1010C '....' - lw         $s1, 268($sp)
0x088769E0: 0x8FB20110 '....' - lw         $s2, 272($sp)
0x088769E4: 0x8FB30114 '....' - lw         $s3, 276($sp)
0x088769E8: 0x8FB40118 '....' - lw         $s4, 280($sp)
0x088769EC: 0x8FB5011C '....' - lw         $s5, 284($sp)
0x088769F0: 0x8FBF0120 ' ...' - lw         $ra, 288($sp)
0x088769F4: 0x03E00008 '....' - jr         $ra
0x088769F8: 0x27BD0130 '0..'' - addiu      $sp, $sp, 304
0x088769FC: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x08876A00: 0x3C040891 '...<' - lui        $a0, 0x891
0x08876A04: 0x8C84D390 '....' - lw         $a0, -11376($a0)
0x08876A08: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x08876A0C: 0x10800008 '....' - beqz       $a0, 0x08876A30
0x08876A10: 0x3C040891 '...<' - lui        $a0, 0x891
0x08876A14: 0x8C84D394 '....' - lw         $a0, -11372($a0)
0x08876A18: 0x10800005 '....' - beqz       $a0, 0x08876A30
0x08876A1C: 0x00000000 '....' - nop
0x08876A20: 0x0E22191D '..".' - jal        0x08886474
0x08876A24: 0x00000000 '....' - nop
0x08876A28: 0x0E21D395 '..!.' - jal        0x08874E54
0x08876A2C: 0x00402025 '% @.' - move       $a0, $v0
0x08876A30: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x08876A34: 0x03E00008 '....' - jr         $ra
0x08876A38: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x08876A3C: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x08876A40: 0x3C040891 '...<' - lui        $a0, 0x891
0x08876A44: 0x8C84D390 '....' - lw         $a0, -11376($a0)
0x08876A48: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x08876A4C: 0x10800008 '....' - beqz       $a0, 0x08876A70
0x08876A50: 0x3C040891 '...<' - lui        $a0, 0x891
0x08876A54: 0x8C84D394 '....' - lw         $a0, -11372($a0)
0x08876A58: 0x10800005 '....' - beqz       $a0, 0x08876A70
0x08876A5C: 0x00000000 '....' - nop
0x08876A60: 0x0E2218F5 '..".' - jal        0x088863D4
0x08876A64: 0x34050001 '...4' - li         $a1, 0x1
0x08876A68: 0x0E21D395 '..!.' - jal        0x08874E54
0x08876A6C: 0x00402025 '% @.' - move       $a0, $v0
0x08876A70: 0x0E21DA7F '..!.' - jal        0x088769FC
0x08876A74: 0x44806000 '.`.D' - mtc1       $zr, $fcr12
0x08876A78: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x08876A7C: 0x03E00008 '....' - jr         $ra
0x08876A80: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x08876A84: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x08876A88: 0x3C040891 '...<' - lui        $a0, 0x891
0x08876A8C: 0x8C84D390 '....' - lw         $a0, -11376($a0)
0x08876A90: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x08876A94: 0x10800008 '....' - beqz       $a0, 0x08876AB8
0x08876A98: 0x3C040891 '...<' - lui        $a0, 0x891
0x08876A9C: 0x8C84D394 '....' - lw         $a0, -11372($a0)
0x08876AA0: 0x10800005 '....' - beqz       $a0, 0x08876AB8
0x08876AA4: 0x00000000 '....' - nop
0x08876AA8: 0x0E2218F5 '..".' - jal        0x088863D4
0x08876AAC: 0x00002825 '%(..' - move       $a1, $zr
0x08876AB0: 0x0E21D395 '..!.' - jal        0x08874E54
0x08876AB4: 0x00402025 '% @.' - move       $a0, $v0
0x08876AB8: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x08876ABC: 0x03E00008 '....' - jr         $ra
0x08876AC0: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x08876AC4: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x08876AC8: 0x3C0409E8 '...<' - lui        $a0, 0x9E8
0x08876ACC: 0x8C844B58 'XK..' - lw         $a0, 19288($a0)
0x08876AD0: 0xAFBF0004 '....' - sw         $ra, 4($sp)
0x08876AD4: 0x14800003 '....' - bnez       $a0, 0x08876AE4
0x08876AD8: 0x00000000 '....' - nop
0x08876ADC: 0x10000007 '....' - b          0x08876AFC
0x08876AE0: 0x00000000 '....' - nop
0x08876AE4: 0xAFA00000 '....' - sw         $zr, 0($sp)
0x08876AE8: 0x0E2211FF '..".' - jal        0x088847FC
0x08876AEC: 0x03A02825 '%(..' - move       $a1, $sp
0x08876AF0: 0x8FA40000 '....' - lw         $a0, 0($sp)
0x08876AF4: 0x0E221E1E '..".' - jal        0x08887878
0x08876AF8: 0x34050001 '...4' - li         $a1, 0x1
0x08876AFC: 0x8FBF0004 '....' - lw         $ra, 4($sp)
0x08876B00: 0x03E00008 '....' - jr         $ra
0x08876B04: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x08876B08: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x08876B0C: 0x3C0409E8 '...<' - lui        $a0, 0x9E8
0x08876B10: 0x8C844B58 'XK..' - lw         $a0, 19288($a0)
0x08876B14: 0xAFBF0004 '....' - sw         $ra, 4($sp)
0x08876B18: 0x14800003 '....' - bnez       $a0, 0x08876B28
0x08876B1C: 0x00000000 '....' - nop
0x08876B20: 0x10000007 '....' - b          0x08876B40
0x08876B24: 0x00000000 '....' - nop
0x08876B28: 0xAFA00000 '....' - sw         $zr, 0($sp)
0x08876B2C: 0x0E2211FF '..".' - jal        0x088847FC
0x08876B30: 0x03A02825 '%(..' - move       $a1, $sp
0x08876B34: 0x8FA40000 '....' - lw         $a0, 0($sp)
0x08876B38: 0x0E221E1E '..".' - jal        0x08887878
0x08876B3C: 0x00002825 '%(..' - move       $a1, $zr
0x08876B40: 0x8FBF0004 '....' - lw         $ra, 4($sp)
0x08876B44: 0x03E00008 '....' - jr         $ra
0x08876B48: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x08876B4C: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x08876B50: 0xAFA00000 '....' - sw         $zr, 0($sp)
0x08876B54: 0x3C040891 '...<' - lui        $a0, 0x891
0x08876B58: 0x8C84D390 '....' - lw         $a0, -11376($a0)
0x08876B5C: 0xAFBF0004 '....' - sw         $ra, 4($sp)
0x08876B60: 0x10800009 '....' - beqz       $a0, 0x08876B88
0x08876B64: 0x3C040891 '...<' - lui        $a0, 0x891
0x08876B68: 0x8C84D394 '....' - lw         $a0, -11372($a0)
0x08876B6C: 0x10800006 '....' - beqz       $a0, 0x08876B88
0x08876B70: 0x00000000 '....' - nop
0x08876B74: 0x03A02825 '%(..' - move       $a1, $sp
0x08876B78: 0x0E221A98 '..".' - jal        0x08886A60
0x08876B7C: 0x34060001 '...4' - li         $a2, 0x1
0x08876B80: 0x0E21D395 '..!.' - jal        0x08874E54
0x08876B84: 0x00402025 '% @.' - move       $a0, $v0
0x08876B88: 0x8FA20000 '....' - lw         $v0, 0($sp)
0x08876B8C: 0x8FBF0004 '....' - lw         $ra, 4($sp)
0x08876B90: 0x03E00008 '....' - jr         $ra
0x08876B94: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x08876B98: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x08876B9C: 0x3C050891 '...<' - lui        $a1, 0x891
0x08876BA0: 0x8CA5D390 '....' - lw         $a1, -11376($a1)
0x08876BA4: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x08876BA8: 0x10A0000B '....' - beqz       $a1, 0x08876BD8
0x08876BAC: 0x3C050891 '...<' - lui        $a1, 0x891
0x08876BB0: 0x8CA5D394 '....' - lw         $a1, -11372($a1)
0x08876BB4: 0x10A00008 '....' - beqz       $a1, 0x08876BD8
0x08876BB8: 0x00000000 '....' - nop
0x08876BBC: 0x00A03825 '%8..' - move       $a3, $a1
0x08876BC0: 0x00802825 '%(..' - move       $a1, $a0
0x08876BC4: 0x34060001 '...4' - li         $a2, 0x1
0x08876BC8: 0x0E221A87 '..".' - jal        0x08886A1C
0x08876BCC: 0x00E02025 '% ..' - move       $a0, $a3
0x08876BD0: 0x0E21D395 '..!.' - jal        0x08874E54
0x08876BD4: 0x00402025 '% @.' - move       $a0, $v0
0x08876BD8: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x08876BDC: 0x03E00008 '....' - jr         $ra
0x08876BE0: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x08876BE4: 0x27BDFFD0 '...'' - addiu      $sp, $sp, -48
0x08876BE8: 0x3C070918 '...<' - lui        $a3, 0x918
0x08876BEC: 0x8CE730C8 '.0..' - lw         $a3, 12488($a3)
0x08876BF0: 0xAFB10010 '....' - sw         $s1, 16($sp)
0x08876BF4: 0xAFB20014 '....' - sw         $s2, 20($sp)
0x08876BF8: 0x00809025 '%...' - move       $s2, $a0
0x08876BFC: 0x00A08825 '%...' - move       $s1, $a1
0x08876C00: 0xE7B40000 '....' - swc1       $fpr20, 0($sp)
0x08876C04: 0xE7B60004 '....' - swc1       $fpr22, 4($sp)
0x08876C08: 0xE7B80008 '....' - swc1       $fpr24, 8($sp)
0x08876C0C: 0xAFB0000C '....' - sw         $s0, 12($sp)
0x08876C10: 0xAFB30018 '....' - sw         $s3, 24($sp)
0x08876C14: 0xAFB4001C '....' - sw         $s4, 28($sp)
0x08876C18: 0xAFB50020 ' ...' - sw         $s5, 32($sp)
0x08876C1C: 0xAFBF0024 '$...' - sw         $ra, 36($sp)
0x08876C20: 0x10E00026 '&...' - beqz       $a3, 0x08876CBC
0x08876C24: 0x00C08025 '%...' - move       $s0, $a2
0x08876C28: 0x92440000 '..D.' - lbu        $a0, 0($s2)
0x08876C2C: 0x3C05437F '.C.<' - lui        $a1, 0x437F
0x08876C30: 0x44846000 '.`.D' - mtc1       $a0, $fcr12
0x08876C34: 0x46806320 ' c.F' - cvt.s.w    $fpr12, $fpr12
0x08876C38: 0x4485C000 '...D' - mtc1       $a1, $fcr24
0x08876C3C: 0x46186303 '.c.F' - div.s      $fpr12, $fpr12, $fpr24
0x08876C40: 0x3C1509E9 '...<' - lui        $s5, 0x9E9
0x08876C44: 0x26B49798 '...&' - addiu      $s4, $s5, -26728
0x08876C48: 0x3C1309E9 '...<' - lui        $s3, 0x9E9
0x08876C4C: 0x26739788 '..s&' - addiu      $s3, $s3, -26744
0x08876C50: 0x02602025 '% `.' - move       $a0, $s3
0x08876C54: 0x02802825 '%(..' - move       $a1, $s4
0x08876C58: 0xE6AC9798 '....' - swc1       $fpr12, -26728($s5)
0x08876C5C: 0x92260000 '..&.' - lbu        $a2, 0($s1)
0x08876C60: 0x44866000 '.`.D' - mtc1       $a2, $fcr12
0x08876C64: 0x46806320 ' c.F' - cvt.s.w    $fpr12, $fpr12
0x08876C68: 0x46186303 '.c.F' - div.s      $fpr12, $fpr12, $fpr24
0x08876C6C: 0xE68C0004 '....' - swc1       $fpr12, 4($s4)
0x08876C70: 0x92060000 '....' - lbu        $a2, 0($s0)
0x08876C74: 0x44866000 '.`.D' - mtc1       $a2, $fcr12
0x08876C78: 0x46806320 ' c.F' - cvt.s.w    $fpr12, $fpr12
0x08876C7C: 0x46186303 '.c.F' - div.s      $fpr12, $fpr12, $fpr24
0x08876C80: 0x0E21BD47 'G.!.' - jal        0x0886F51C
0x08876C84: 0xE68C0008 '....' - swc1       $fpr12, 8($s4)
0x08876C88: 0xC66C0004 '..l.' - lwc1       $fpr12, 4($s3)
0x08876C8C: 0x3C040914 '...<' - lui        $a0, 0x914
0x08876C90: 0x4480A000 '...D' - mtc1       $zr, $fcr20
0x08876C94: 0xC48D9F70 'p...' - lwc1       $fpr13, -24720($a0)
0x08876C98: 0x3C043F80 '.?.<' - lui        $a0, 0x3F80
0x08876C9C: 0x460D6302 '.c.F' - mul.s      $fpr12, $fpr12, $fpr13
0x08876CA0: 0x4484B000 '...D' - mtc1       $a0, $fcr22
0x08876CA4: 0x4616603E '>`.F' - c.le.s     $fpr12, $fpr22
0x08876CA8: 0x00000000 '....' - nop
0x08876CAC: 0x45000005 '...E' - bc1f       0x08876CC4
0x08876CB0: 0xE66C0004 '..l.' - swc1       $fpr12, 4($s3)
0x08876CB4: 0x10000004 '....' - b          0x08876CC8
0x08876CB8: 0x00000000 '....' - nop
0x08876CBC: 0x10000037 '7...' - b          0x08876D9C
0x08876CC0: 0x00000000 '....' - nop
0x08876CC4: 0xE6760004 '..v.' - swc1       $fpr22, 4($s3)
0x08876CC8: 0x02802025 '% ..' - move       $a0, $s4
0x08876CCC: 0x0E21BD9A '..!.' - jal        0x0886F668
0x08876CD0: 0x02602825 '%(`.' - move       $a1, $s3
0x08876CD4: 0xC6AE9798 '....' - lwc1       $fpr14, -26728($s5)
0x08876CD8: 0xC68D0004 '....' - lwc1       $fpr13, 4($s4)
0x08876CDC: 0x4616703E '>p.F' - c.le.s     $fpr14, $fpr22
0x08876CE0: 0x00000000 '....' - nop
0x08876CE4: 0x45010003 '...E' - bc1t       0x08876CF4
0x08876CE8: 0xC68C0008 '....' - lwc1       $fpr12, 8($s4)
0x08876CEC: 0xE6B69798 '....' - swc1       $fpr22, -26728($s5)
0x08876CF0: 0x4600B386 '...F' - mov.s      $fpr14, $fpr22
0x08876CF4: 0x4616683E '>h.F' - c.le.s     $fpr13, $fpr22
0x08876CF8: 0x00000000 '....' - nop
0x08876CFC: 0x45010003 '...E' - bc1t       0x08876D0C
0x08876D00: 0x00000000 '....' - nop
0x08876D04: 0xE6960004 '....' - swc1       $fpr22, 4($s4)
0x08876D08: 0x4600B346 'F..F' - mov.s      $fpr13, $fpr22
0x08876D0C: 0x4616603E '>`.F' - c.le.s     $fpr12, $fpr22
0x08876D10: 0x00000000 '....' - nop
0x08876D14: 0x45010003 '...E' - bc1t       0x08876D24
0x08876D18: 0x00000000 '....' - nop
0x08876D1C: 0xE6960008 '....' - swc1       $fpr22, 8($s4)
0x08876D20: 0x4600B306 '...F' - mov.s      $fpr12, $fpr22
0x08876D24: 0x4614703C '<p.F' - c.lt.s     $fpr14, $fpr20
0x08876D28: 0x00000000 '....' - nop
0x08876D2C: 0x45000003 '...E' - bc1f       0x08876D3C
0x08876D30: 0x00000000 '....' - nop
0x08876D34: 0xE6B49798 '....' - swc1       $fpr20, -26728($s5)
0x08876D38: 0x4600A386 '...F' - mov.s      $fpr14, $fpr20
0x08876D3C: 0x4614683C '<h.F' - c.lt.s     $fpr13, $fpr20
0x08876D40: 0x00000000 '....' - nop
0x08876D44: 0x45000002 '...E' - bc1f       0x08876D50
0x08876D48: 0x00000000 '....' - nop
0x08876D4C: 0xE6940004 '....' - swc1       $fpr20, 4($s4)
host0:/>

xerpi
HBL Collaborator
Posts: 139
Joined: Sat Apr 23, 2011 10:45 am
Location: Barcelona

Re: Is this crash exploitable ??

Post by xerpi » Sun Jan 13, 2013 12:56 pm

For now it's useless, you have controls over two registers and they don't do anything. They all are overwritten in a few instructions after the crash. Try overflowing other registers adding more stuff to the savegame.

carlmarq
Posts: 6
Joined: Fri Dec 21, 2012 3:59 am

Re: Is this crash exploitable ??

Post by carlmarq » Sun Jan 13, 2013 1:02 pm

ok thanks anyway. I'll see if i can get additional registers to control..

carlmarq
Posts: 6
Joined: Fri Dec 21, 2012 3:59 am

Re: Is this crash exploitable ??

Post by carlmarq » Sat Jan 26, 2013 7:21 am

Hi Guys, I found another crash.. can someone take a look on the codes below and advice what can I do with it...
I have control on S4 and it somehow affecting s0.

Code: Select all

EPC       - 0x088E6D54
Cause     - 0x10000014
BadVAddr  - 0x7F800009
Status    - 0x60088613
zr:0x00000000 at:0xDEADBEEF v0:0x7F800001 v1:0x00000C2F
a0:0x08A50000 a1:0x08AB6DE3 a2:0x09FFF9B4 a3:0xDEADBEEF
t0:0xDEADBEEF t1:0xDEADBEEF t2:0xDEADBEEF t3:0xDEADBEEF
t4:0xDEADBEEF t5:0xDEADBEEF t6:0xDEADBEEF t7:0xDEADBEEF
s0:0x14141600 s1:0x00010000 s2:0x00000000 s3:0x000108DC
s4:0x41414141 s5:0x0943C744 s6:0x00000006 s7:0xFFFFFFFA
t8:0xDEADBEEF t9:0xDEADBEEF k0:0x09FFFB00 k1:0x00000000
gp:0x089C0170 sp:0x09FFF430 fp:0x00000002 ra:0x088E6D54
0x088E6D54: 0xAC500008 '..P.' - sw         $s0, 8($v0)
disasm $epc-200 400
0x088E6C8C: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6C90: 0x0A239A2C ',.#.' - j          0x088E68B0
0x088E6C94: 0xAEB40004 '....' - sw         $s4, 4($s5)
0x088E6C98: 0x50A00005 '...P' - beqzl      $a1, 0x088E6CB0
0x088E6C9C: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6CA0: 0x8E6200A8 '..b.' - lw         $v0, 168($s3)
0x088E6CA4: 0xAC82FFFC '....' - sw         $v0, -4($a0)
0x088E6CA8: 0xAE6500A8 '..e.' - sw         $a1, 168($s3)
0x088E6CAC: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6CB0: 0xAEB60000 '....' - sw         $s6, 0($s5)
0x088E6CB4: 0x2442FF00 '..B$' - addiu      $v0, $v0, -256
0x088E6CB8: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6CBC: 0x0A239A2C ',.#.' - j          0x088E68B0
0x088E6CC0: 0xAEB40004 '....' - sw         $s4, 4($s5)
0x088E6CC4: 0x50A00005 '...P' - beqzl      $a1, 0x088E6CDC
0x088E6CC8: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6CCC: 0x8E620048 'H.b.' - lw         $v0, 72($s3)
0x088E6CD0: 0xAC82FFFC '....' - sw         $v0, -4($a0)
0x088E6CD4: 0xAE650048 'H.e.' - sw         $a1, 72($s3)
0x088E6CD8: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6CDC: 0xAEB60000 '....' - sw         $s6, 0($s5)
0x088E6CE0: 0x2442FFE8 '..B$' - addiu      $v0, $v0, -24
0x088E6CE4: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6CE8: 0x0A239A2C ',.#.' - j          0x088E68B0
0x088E6CEC: 0xAEB40004 '....' - sw         $s4, 4($s5)
0x088E6CF0: 0x10600038 '8.`.' - beqz       $v1, 0x088E6DD4
0x088E6CF4: 0x00000000 '....' - nop
0x088E6CF8: 0x8C620000 '..b.' - lw         $v0, 0($v1)
0x088E6CFC: 0xAE22093C '<.".' - sw         $v0, 2364($s1)
0x088E6D00: 0x00602021 '! `.' - move       $a0, $v1
0x088E6D04: 0x24030020 ' ..$' - li         $v1, 32
0x088E6D08: 0xAC830000 '....' - sw         $v1, 0($a0)
0x088E6D0C: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6D10: 0x24420020 ' .B$' - addiu      $v0, $v0, 32
0x088E6D14: 0x0A239A0A '..#.' - j          0x088E6828
0x088E6D18: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6D1C: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6D20: 0x262408E0 '..$&' - addiu      $a0, $s1, 2272
0x088E6D24: 0x0A239A78 'x.#.' - j          0x088E69E0
0x088E6D28: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6D2C: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6D30: 0x26240958 'X.$&' - addiu      $a0, $s1, 2392
0x088E6D34: 0x0A239A6D 'm.#.' - j          0x088E69B4
0x088E6D38: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6D3C: 0x3C06089B '...<' - lui        $a2, 0x89B
0x088E6D40: 0x2484D664 'd..$' - addiu      $a0, $a0, -10652
0x088E6D44: 0x240500BF '...$' - li         $a1, 191
0x088E6D48: 0x24C6D688 '...$' - addiu      $a2, $a2, -10616
0x088E6D4C: 0x0E23238C '.##.' - jal        0x088C8E30
0x088E6D50: 0x2607000C '...&' - addiu      $a3, $s0, 12
0x088E6D54: 0xAC500008 '..P.' - sw         $s0, 8($v0)
0x088E6D58: 0x262409B4 '..$&' - addiu      $a0, $s1, 2484
0x088E6D5C: 0x2456000C '..V$' - addiu      $s6, $v0, 12
0x088E6D60: 0x8E6300E0 '..c.' - lw         $v1, 224($s3)
0x088E6D64: 0x8E2509B4 '..%.' - lw         $a1, 2484($s1)
0x088E6D68: 0xAC440004 '..D.' - sw         $a0, 4($v0)
0x088E6D6C: 0x02031821 '!...' - addu       $v1, $s0, $v1
0x088E6D70: 0xAC450000 '..E.' - sw         $a1, 0($v0)
0x088E6D74: 0xACA20004 '....' - sw         $v0, 4($a1)
0x088E6D78: 0xAE6300E0 '..c.' - sw         $v1, 224($s3)
0x088E6D7C: 0x0A239A0B '..#.' - j          0x088E682C
0x088E6D80: 0xAE2209B4 '..".' - sw         $v0, 2484($s1)
0x088E6D84: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6D88: 0x262408F8 '..$&' - addiu      $a0, $s1, 2296
0x088E6D8C: 0x0A239A42 'B.#.' - j          0x088E6908
0x088E6D90: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6D94: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6D98: 0x26240970 'p.$&' - addiu      $a0, $s1, 2416
0x088E6D9C: 0x0A239A04 '..#.' - j          0x088E6810
0x088E6DA0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DA4: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6DA8: 0x26240988 '..$&' - addiu      $a0, $s1, 2440
0x088E6DAC: 0x0A239B14 '..#.' - j          0x088E6C50
0x088E6DB0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DB4: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6DB8: 0x26240910 '..$&' - addiu      $a0, $s1, 2320
0x088E6DBC: 0x0A239B09 '..#.' - j          0x088E6C24
0x088E6DC0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DC4: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6DC8: 0x262409A0 '..$&' - addiu      $a0, $s1, 2464
0x088E6DCC: 0x0A239AB6 '..#.' - j          0x088E6AD8
0x088E6DD0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DD4: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6DD8: 0x26240940 '@.$&' - addiu      $a0, $s1, 2368
0x088E6DDC: 0x0A239B40 '@.#.' - j          0x088E6D00
0x088E6DE0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DE4: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6DE8: 0x26240928 '(.$&' - addiu      $a0, $s1, 2344
0x088E6DEC: 0x0A239AC7 '..#.' - j          0x088E6B1C
0x088E6DF0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DF4: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x088E6DF8: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x088E6DFC: 0x00804021 '!@..' - move       $t0, $a0
0x088E6E00: 0x8482004C 'L...' - lh         $v0, 76($a0)
0x088E6E04: 0x1840001A '..@.' - blez       $v0, 0x088E6E70
0x088E6E08: 0x00003021 '!0..' - move       $a2, $zr
0x088E6E0C: 0x8C840024 '$...' - lw         $a0, 36($a0)
0x088E6E10: 0x8D050018 '....' - lw         $a1, 24($t0)
0x088E6E14: 0x00041100 '....' - sll        $v0, $a0, 4
0x088E6E18: 0x00A23821 '!8..' - addu       $a3, $a1, $v0
0x088E6E1C: 0x8CE30000 '....' - lw         $v1, 0($a3)
0x088E6E20: 0x24020001 '...$' - li         $v0, 1
0x088E6E24: 0x50620001 '..bP' - beql       $v1, $v0, 0x088E6E2C
0x088E6E28: 0x8CE60004 '....' - lw         $a2, 4($a3)
0x088E6E2C: 0x00041900 '....' - sll        $v1, $a0, 4
0x088E6E30: 0x00A31821 '!...' - addu       $v1, $a1, $v1
0x088E6E34: 0x8C62FFE0 '..b.' - lw         $v0, -32($v1)
0x088E6E38: 0x00003821 '!8..' - move       $a3, $zr
0x088E6E3C: 0x28420007 '..B(' - slti       $v0, $v0, 7
0x088E6E40: 0x14400002 '..@.' - bnez       $v0, 0x088E6E4C
0x088E6E44: 0x2464FFE0 '..d$' - addiu      $a0, $v1, -32
0x088E6E48: 0x8C870004 '....' - lw         $a3, 4($a0)
0x088E6E4C: 0x8CE20014 '....' - lw         $v0, 20($a3)
0x088E6E50: 0x10400003 '..@.' - beqz       $v0, 0x088E6E60
0x088E6E54: 0x00402021 '! @.' - move       $a0, $v0
0x088E6E58: 0x0E2399DE '..#.' - jal        0x088E6778
0x088E6E5C: 0x8D050014 '....' - lw         $a1, 20($t0)
0x088E6E60: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x088E6E64: 0x00001021 '!...' - move       $v0, $zr
0x088E6E68: 0x03E00008 '....' - jr         $ra
0x088E6E6C: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x088E6E70: 0x8C840024 '$...' - lw         $a0, 36($a0)
0x088E6E74: 0x0A239B8B '..#.' - j          0x088E6E2C
0x088E6E78: 0x8D050018 '....' - lw         $a1, 24($t0)
0x088E6E7C: 0x3C0208A6 '...<' - lui        $v0, 0x8A6
0x088E6E80: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x088E6E84: 0x2443D744 'D.C$' - addiu      $v1, $v0, -10428
0x088E6E88: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x088E6E8C: 0xAC600004 '..`.' - sw         $zr, 4($v1)
0x088E6E90: 0xAC40D744 'D.@.' - sw         $zr, -10428($v0)
0x088E6E94: 0xAC800000 '....' - sw         $zr, 0($a0)
0x088E6E98: 0x0E2399DE '..#.' - jal        0x088E6778
0x088E6E9C: 0xAC800004 '....' - sw         $zr, 4($a0)
0x088E6EA0: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x088E6EA4: 0x03E00008 '....' - jr         $ra
0x088E6EA8: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x088E6EAC: 0x27BDFFE0 '...'' - addiu      $sp, $sp, -32
0x088E6EB0: 0xAFB20008 '....' - sw         $s2, 8($sp)
0x088E6EB4: 0xAFBF0010 '....' - sw         $ra, 16($sp)
0x088E6EB8: 0xAFB3000C '....' - sw         $s3, 12($sp)
0x088E6EBC: 0xAFB10004 '....' - sw         $s1, 4($sp)
0x088E6EC0: 0xAFB00000 '....' - sw         $s0, 0($sp)
0x088E6EC4: 0x8CB10014 '....' - lw         $s1, 20($a1)
0x088E6EC8: 0x12200022 '". .' - beqz       $s1, 0x088E6F54
0x088E6ECC: 0x01009021 '!...' - move       $s2, $t0
0x088E6ED0: 0x8E250004 '..%.' - lw         $a1, 4($s1)
0x088E6ED4: 0x58A0001D '...X' - blezl      $a1, 0x088E6F4C
0x088E6ED8: 0x8E420000 '..B.' - lw         $v0, 0($s2)
0x088E6EDC: 0x24D30004 '...$' - addiu      $s3, $a2, 4
0x088E6EE0: 0x00008021 '!...' - move       $s0, $zr
0x088E6EE4: 0x8E240000 '..$.' - lw         $a0, 0($s1)
0x088E6EE8: 0x00101900 '....' - sll        $v1, $s0, 4
0x088E6EEC: 0x00832021 '! ..' - addu       $a0, $a0, $v1
0x088E6EF0: 0x8C820000 '....' - lw         $v0, 0($a0)
0x088E6EF4: 0x28420004 '..B(' - slti       $v0, $v0, 4
0x088E6EF8: 0x14400010 '..@.' - bnez       $v0, 0x088E6F3C
0x088E6EFC: 0x26100001 '...&' - addiu      $s0, $s0, 1
0x088E6F00: 0x8C850004 '....' - lw         $a1, 4($a0)
0x088E6F04: 0x80A2000D '....' - lb         $v0, 13($a1)
0x088E6F08: 0x54400009 '..@T' - bnezl      $v0, 0x088E6F30
0x088E6F0C: 0x8E420000 '..B.' - lw         $v0, 0($s2)
0x088E6F10: 0x8E620058 'X.b.' - lw         $v0, 88($s3)
0x088E6F14: 0x80A6000C '....' - lb         $a2, 12($a1)
0x088E6F18: 0x8C430060 '`.C.' - lw         $v1, 96($v0)
0x088E6F1C: 0x10C30003 '....' - beq        $a2, $v1, 0x088E6F2C
0x088E6F20: 0x02602021 '! `.' - move       $a0, $s3
0x088E6F24: 0x0E231B29 ').#.' - jal        0x088C6CA4
0x088E6F28: 0x00000000 '....' - nop
0x088E6F2C: 0x8E420000 '..B.' - lw         $v0, 0($s2)
0x088E6F30: 0x24420001 '..B$' - addiu      $v0, $v0, 1
0x088E6F34: 0xAE420000 '..B.' - sw         $v0, 0($s2)
0x088E6F38: 0x8E250004 '..%.' - lw         $a1, 4($s1)
0x088E6F3C: 0x0205102A '*...' - slt        $v0, $s0, $a1
0x088E6F40: 0x5440FFE9 '..@T' - bnezl      $v0, 0x088E6EE8
0x088E6F44: 0x8E240000 '..$.' - lw         $a0, 0($s1)
0x088E6F48: 0x8E420000 '..B.' - lw         $v0, 0($s2)
0x088E6F4C: 0x24420001 '..B$' - addiu      $v0, $v0, 1
0x088E6F50: 0xAE420000 '..B.' - sw         $v0, 0($s2)
0x088E6F54: 0x8FBF0010 '....' - lw         $ra, 16($sp)
0x088E6F58: 0x8FB3000C '....' - lw         $s3, 12($sp)
0x088E6F5C: 0x8FB20008 '....' - lw         $s2, 8($sp)
0x088E6F60: 0x8FB10004 '....' - lw         $s1, 4($sp)
0x088E6F64: 0x8FB00000 '....' - lw         $s0, 0($sp)
0x088E6F68: 0x24020001 '...$' - li         $v0, 1
0x088E6F6C: 0x03E00008 '....' - jr         $ra
0x088E6F70: 0x27BD0020 ' ..'' - addiu      $sp, $sp, 32
0x088E6F74: 0x27BDFFE0 '...'' - addiu      $sp, $sp, -32
0x088E6F78: 0xAFB3000C '....' - sw         $s3, 12($sp)
0x088E6F7C: 0x00A09821 '!...' - move       $s3, $a1
0x088E6F80: 0xAFB20008 '....' - sw         $s2, 8($sp)
0x088E6F84: 0xAFB10004 '....' - sw         $s1, 4($sp)
0x088E6F88: 0x00808821 '!...' - move       $s1, $a0
0x088E6F8C: 0x263208DC '..2&' - addiu      $s2, $s1, 2268
0x088E6F90: 0xAFBF0010 '....' - sw         $ra, 16($sp)
0x088E6F94: 0xAFB00000 '....' - sw         $s0, 0($sp)
0x088E6F98: 0x8C8808DC '....' - lw         $t0, 2268($a0)
0x088E6F9C: 0x1100001B '....' - beqz       $t0, 0x088E700C
0x088E6FA0: 0x248408E0 '...$' - addiu      $a0, $a0, 2272
0x088E6FA4: 0x8D020000 '....' - lw         $v0, 0($t0)
0x088E6FA8: 0xAE2208DC '..".' - sw         $v0, 2268($s1)
0x088E6FAC: 0x24020008 '...$' - li         $v0, 8
0x088E6FB0: 0xAD020000 '....' - sw         $v0, 0($t0)
0x088E6FB4: 0x3C0708A6 '...<' - lui        $a3, 0x8A6
0x088E6FB8: 0x25100004 '...%' - addiu      $s0, $t0, 4
0x088E6FBC: 0x8E4200E0 '..B.' - lw         $v0, 224($s2)
0x088E6FC0: 0x24E3D744 'D..$' - addiu      $v1, $a3, -10428
0x088E6FC4: 0x02202821 '!( .' - move       $a1, $s1
0x088E6FC8: 0x24420008 '..B$' - addiu      $v0, $v0, 8
0x088E6FCC: 0xAE4200E0 '..B.' - sw         $v0, 224($s2)
0x088E6FD0: 0x02603021 '!0`.' - move       $a2, $s3
0x088E6FD4: 0x02002021 '! ..' - move       $a0, $s0
0x088E6FD8: 0xAC600004 '..`.' - sw         $zr, 4($v1)
0x088E6FDC: 0xACE0D744 'D...' - sw         $zr, -10428($a3)
0x088E6FE0: 0xAD000004 '....' - sw         $zr, 4($t0)
0x088E6FE4: 0x0E2399DE '..#.' - jal        0x088E6778
0x088E6FE8: 0xAE000004 '....' - sw         $zr, 4($s0)
0x088E6FEC: 0x02001021 '!...' - move       $v0, $s0
0x088E6FF0: 0x8FBF0010 '....' - lw         $ra, 16($sp)
0x088E6FF4: 0x8FB3000C '....' - lw         $s3, 12($sp)
0x088E6FF8: 0x8FB20008 '....' - lw         $s2, 8($sp)
0x088E6FFC: 0x8FB10004 '....' - lw         $s1, 4($sp)
0x088E7000: 0x8FB00000 '....' - lw         $s0, 0($sp)
0x088E7004: 0x03E00008 '....' - jr         $ra
0x088E7008: 0x27BD0020 ' ..'' - addiu      $sp, $sp, 32
0x088E700C: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E7010: 0x00000000 '....' - nop
0x088E7014: 0x0A239BEB '..#.' - j          0x088E6FAC
0x088E7018: 0x00404021 '!@@.' - move       $t0, $v0
0x088E701C: 0x27BDFFE0 '...'' - addiu      $sp, $sp, -32
0x088E7020: 0xAFB3000C '....' - sw         $s3, 12($sp)
0x088E7024: 0xAFB20008 '....' - sw         $s2, 8($sp)
0x088E7028: 0x00809021 '!...' - move       $s2, $a0
0x088E702C: 0xAFBF0010 '....' - sw         $ra, 16($sp)
0x088E7030: 0xAFB10004 '....' - sw         $s1, 4($sp)
0x088E7034: 0xAFB00000 '....' - sw         $s0, 0($sp)
0x088E7038: 0x8C850014 '....' - lw         $a1, 20($a0)
0x088E703C: 0x8CA608DC '....' - lw         $a2, 2268($a1)
0x088E7040: 0x10C00094 '....' - beqz       $a2, 0x088E7294
0x088E7044: 0x24B308DC '...$' - addiu      $s3, $a1, 2268
0x088E7048: 0x8CC20000 '....' - lw         $v0, 0($a2)
0x088E704C: 0xACA208DC '....' - sw         $v0, 2268($a1)
0x088E7050: 0x24020008 '...$' - li         $v0, 8
0x088E7054: 0xACC20000 '....' - sw         $v0, 0($a2)
0x088E7058: 0x24D10004 '...$' - addiu      $s1, $a2, 4
0x088E705C: 0x9647004C 'L.G.' - lhu        $a3, 76($s2)
0x088E7060: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E7064: 0x7C078620 ' ..|' - seh        $s0, $a3
0x088E7068: 0x24420008 '..B$' - addiu      $v0, $v0, 8
0x088E706C: 0x2A030002 '...*' - slti       $v1, $s0, 2
0x088E7070: 0x14600052 'R.`.' - bnez       $v1, 0x088E71BC
0x088E7074: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E7078: 0x3C0308A6 '...<' - lui        $v1, 0x8A6
0x088E707C: 0x2462D744 'D.b$' - addiu      $v0, $v1, -10428
0x088E7080: 0xAC400004 '..@.' - sw         $zr, 4($v0)
0x088E7084: 0x02202021 '!  .' - move       $a0, $s1
0x088E7088: 0xACC00004 '....' - sw         $zr, 4($a2)
0x088E708C: 0x02003021 '!0..' - move       $a2, $s0
0x088E7090: 0xAC60D744 'D.`.' - sw         $zr, -10428($v1)
0x088E7094: 0x0E2399DE '..#.' - jal        0x088E6778
0x088E7098: 0xAE200004 '.. .' - sw         $zr, 4($s1)
0x088E709C: 0x5A000030 '0..Z' - blezl      $s0, 0x088E7160
0x088E70A0: 0x8E420020 ' .B.' - lw         $v0, 32($s2)
0x088E70A4: 0x8E490018 '..I.' - lw         $t1, 24($s2)
0x088E70A8: 0x00003821 '!8..' - move       $a3, $zr
0x088E70AC: 0x8E420024 '$.B.' - lw         $v0, 36($s2)
0x088E70B0: 0x00471021 '!.G.' - addu       $v0, $v0, $a3
0x088E70B4: 0x00021100 '....' - sll        $v0, $v0, 4
0x088E70B8: 0x04E0000F '....' - bltz       $a3, 0x088E70F8
0x088E70BC: 0x01223021 '!0".' - addu       $a2, $t1, $v0
0x088E70C0: 0x8E220004 '..".' - lw         $v0, 4($s1)
0x088E70C4: 0x00E2102A '*...' - slt        $v0, $a3, $v0
0x088E70C8: 0x1040000B '..@.' - beqz       $v0, 0x088E70F8
0x088E70CC: 0x00074100 '.A..' - sll        $t0, $a3, 4
0x088E70D0: 0x8E220000 '..".' - lw         $v0, 0($s1)
0x088E70D4: 0x8CC3000C '....' - lw         $v1, 12($a2)
0x088E70D8: 0x8CC40000 '....' - lw         $a0, 0($a2)
0x088E70DC: 0x8CC50004 '....' - lw         $a1, 4($a2)
0x088E70E0: 0x8CC60008 '....' - lw         $a2, 8($a2)
0x088E70E4: 0x01021021 '!...' - addu       $v0, $t0, $v0
0x088E70E8: 0xAC43000C '..C.' - sw         $v1, 12($v0)
0x088E70EC: 0xAC440000 '..D.' - sw         $a0, 0($v0)
0x088E70F0: 0xAC450004 '..E.' - sw         $a1, 4($v0)
0x088E70F4: 0xAC460008 '..F.' - sw         $a2, 8($v0)
0x088E70F8: 0x24E70001 '...$' - addiu      $a3, $a3, 1
0x088E70FC: 0x5607FFEC '...V' - bnel       $s0, $a3, 0x088E70B0
0x088E7100: 0x8E420024 '$.B.' - lw         $v0, 36($s2)
0x088E7104: 0x8E420020 ' .B.' - lw         $v0, 32($s2)
0x088E7108: 0x3C0308A6 '...<' - lui        $v1, 0x8A6
0x088E710C: 0x8C66D754 'T.f.' - lw         $a2, -10412($v1)
0x088E7110: 0x00021100 '....' - sll        $v0, $v0, 4
0x088E7114: 0x00491021 '!.I.' - addu       $v0, $v0, $t1
0x088E7118: 0xAC460000 '..F.' - sw         $a2, 0($v0)
0x088E711C: 0x02202821 '!( .' - move       $a1, $s1
0x088E7120: 0x8E510020 ' .Q.' - lw         $s1, 32($s2)
0x088E7124: 0x8E440014 '..D.' - lw         $a0, 20($s2)
0x088E7128: 0x00118100 '....' - sll        $s0, $s1, 4
0x088E712C: 0x01308021 '!.0.' - addu       $s0, $t1, $s0
0x088E7130: 0x0E232A07 '.*#.' - jal        0x088CA81C
0x088E7134: 0x26310001 '..1&' - addiu      $s1, $s1, 1
0x088E7138: 0xAE020004 '....' - sw         $v0, 4($s0)
0x088E713C: 0x00001021 '!...' - move       $v0, $zr
0x088E7140: 0xAE510020 ' .Q.' - sw         $s1, 32($s2)
0x088E7144: 0x8FBF0010 '....' - lw         $ra, 16($sp)
0x088E7148: 0x8FB3000C '....' - lw         $s3, 12($sp)
0x088E714C: 0x8FB20008 '....' - lw         $s2, 8($sp)
0x088E7150: 0x8FB10004 '....' - lw         $s1, 4($sp)
0x088E7154: 0x8FB00000 '....' - lw         $s0, 0($sp)
0x088E7158: 0x03E00008 '....' - jr         $ra
0x088E715C: 0x27BD0020 ' ..'' - addiu      $sp, $sp, 32
0x088E7160: 0x8E490018 '..I.' - lw         $t1, 24($s2)
0x088E7164: 0x3C0308A6 '...<' - lui        $v1, 0x8A6
0x088E7168: 0x8C66D754 'T.f.' - lw         $a2, -10412($v1)
0x088E716C: 0x00021100 '....' - sll        $v0, $v0, 4
0x088E7170: 0x00491021 '!.I.' - addu       $v0, $v0, $t1
0x088E7174: 0xAC460000 '..F.' - sw         $a2, 0($v0)
0x088E7178: 0x02202821 '!( .' - move       $a1, $s1
0x088E717C: 0x8E510020 ' .Q.' - lw         $s1, 32($s2)
0x088E7180: 0x8E440014 '..D.' - lw         $a0, 20($s2)
0x088E7184: 0x00118100 '....' - sll        $s0, $s1, 4
0x088E7188: 0x01308021 '!.0.' - addu       $s0, $t1, $s0
0x088E718C: 0x0E232A07 '.*#.' - jal        0x088CA81C
0x088E7190: 0x26310001 '..1&' - addiu      $s1, $s1, 1
0x088E7194: 0xAE020004 '....' - sw         $v0, 4($s0)
0x088E7198: 0x00001021 '!...' - move       $v0, $zr
0x088E719C: 0xAE510020 ' .Q.' - sw         $s1, 32($s2)
0x088E71A0: 0x8FBF0010 '....' - lw         $ra, 16($sp)
0x088E71A4: 0x8FB3000C '....' - lw         $s3, 12($sp)
0x088E71A8: 0x8FB20008 '....' - lw         $s2, 8($sp)
0x088E71AC: 0x8FB10004 '....' - lw         $s1, 4($sp)
0x088E71B0: 0x8FB00000 '....' - lw         $s0, 0($sp)
0x088E71B4: 0x03E00008 '....' - jr         $ra
0x088E71B8: 0x27BD0020 ' ..'' - addiu      $sp, $sp, 32
0x088E71BC: 0x24020001 '...$' - li         $v0, 1
0x088E71C0: 0x1202002B '+...' - beq        $s0, $v0, 0x088E7270
0x088E71C4: 0x7C071620 ' ..|' - seh        $v0, $a3
0x088E71C8: 0x18400009 '..@.' - blez       $v0, 0x088E71F0
0x088E71CC: 0x00003021 '!0..' - move       $a2, $zr
0x088E71D0: 0x8E420024 '$.B.' - lw         $v0, 36($s2)
0x088E71D4: 0x8E430018 '..C.' - lw         $v1, 24($s2)
0x088E71D8: 0x00021100 '....' - sll        $v0, $v0, 4
0x088E71DC: 0x00621821 '!.b.' - addu       $v1, $v1, $v0
0x088E71E0: 0x8C640000 '..d.' - lw         $a0, 0($v1)
0x088E71E4: 0x24020001 '...$' - li         $v0, 1
0x088E71E8: 0x50820001 '...P' - beql       $a0, $v0, 0x088E71F0
0x088E71EC: 0x8C660004 '..f.' - lw         $a2, 4($v1)
0x088E71F0: 0x3C0308A6 '...<' - lui        $v1, 0x8A6
0x088E71F4: 0x2462D744 'D.b$' - addiu      $v0, $v1, -10428
0x088E71F8: 0xAC400004 '..@.' - sw         $zr, 4($v0)
0x088E71FC: 0x02202021 '!  .' - move       $a0, $s1
0x088E7200: 0xAC60D744 'D.`.' - sw         $zr, -10428($v1)
0x088E7204: 0xAE200000 '.. .' - sw         $zr, 0($s1)
0x088E7208: 0x0E2399DE '..#.' - jal        0x088E6778
0x088E720C: 0xAE200004 '.. .' - sw         $zr, 4($s1)
0x088E7210: 0x3C0308A6 '...<' - lui        $v1, 0x8A6
0x088E7214: 0x8E420020 ' .B.' - lw         $v0, 32($s2)
0x088E7218: 0x8E490018 '..I.' - lw         $t1, 24($s2)
0x088E721C: 0x8C66D754 'T.f.' - lw         $a2, -10412($v1)
0x088E7220: 0x00021100 '....' - sll        $v0, $v0, 4
0x088E7224: 0x00491021 '!.I.' - addu       $v0, $v0, $t1
0x088E7228: 0xAC460000 '..F.' - sw         $a2, 0($v0)
0x088E722C: 0x02202821 '!( .' - move       $a1, $s1
0x088E7230: 0x8E510020 ' .Q.' - lw         $s1, 32($s2)
0x088E7234: 0x8E440014 '..D.' - lw         $a0, 20($s2)
0x088E7238: 0x00118100 '....' - sll        $s0, $s1, 4
0x088E723C: 0x01308021 '!.0.' - addu       $s0, $t1, $s0
0x088E7240: 0x0E232A07 '.*#.' - jal        0x088CA81C
0x088E7244: 0x26310001 '..1&' - addiu      $s1, $s1, 1
0x088E7248: 0xAE020004 '....' - sw         $v0, 4($s0)
0x088E724C: 0x00001021 '!...' - move       $v0, $zr
0x088E7250: 0xAE510020 ' .Q.' - sw         $s1, 32($s2)
0x088E7254: 0x8FBF0010 '....' - lw         $ra, 16($sp)
0x088E7258: 0x8FB3000C '....' - lw         $s3, 12($sp)
0x088E725C: 0x8FB20008 '....' - lw         $s2, 8($sp)
0x088E7260: 0x8FB10004 '....' - lw         $s1, 4($sp)
0x088E7264: 0x8FB00000 '....' - lw         $s0, 0($sp)
0x088E7268: 0x03E00008 '....' - jr         $ra
0x088E726C: 0x27BD0020 ' ..'' - addiu      $sp, $sp, 32
0x088E7270: 0x8E420024 '$.B.' - lw         $v0, 36($s2)
0x088E7274: 0x8E440018 '..D.' - lw         $a0, 24($s2)
0x088E7278: 0x00021100 '....' - sll        $v0, $v0, 4
0x088E727C: 0x00441021 '!.D.' - addu       $v0, $v0, $a0
0x088E7280: 0x8C430000 '..C.' - lw         $v1, 0($v0)
0x088E7284: 0x1470FF7D '}.p.' - bne        $v1, $s0, 0x088E707C
0x088E7288: 0x3C0308A6 '...<' - lui        $v1, 0x8A6
0x088E728C: 0x0A239C72 'r.#.' - j          0x088E71C8
0x088E7290: 0x7C071620 ' ..|' - seh        $v0, $a3
0x088E7294: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E7298: 0x24A408E0 '...$' - addiu      $a0, $a1, 2272
0x088E729C: 0x8E450014 '..E.' - lw         $a1, 20($s2)
0x088E72A0: 0x0A239C14 '..#.' - j          0x088E7050
0x088E72A4: 0x00403021 '!0@.' - move       $a2, $v0
0x088E72A8: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x088E72AC: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x088E72B0: 0x00004821 '!H..' - move       $t1, $zr
0x088E72B4: 0x8C820024 '$...' - lw         $v0, 36($a0)
0x088E72B8: 0x8C850018 '....' - lw         $a1, 24($a0)
0x088E72BC: 0x00022100 '.!..' - sll        $a0, $v0, 4
0x088E72C0: 0x00852021 '! ..' - addu       $a0, $a0, $a1
0x088E72C4: 0x8C86FFE0 '....' - lw         $a2, -32($a0)
0x088E72C8: 0x24430002 '..C$' - addiu      $v1, $v0, 2


User avatar
tomtomdu80
Buffer Overflow
Posts: 113
Joined: Tue Nov 20, 2012 6:39 pm
Location: France

Re: Is this crash exploitable ??

Post by tomtomdu80 » Sat Jan 26, 2013 11:19 am

please provide a disasm $epc-500 250, it could be more useful ;)

carlmarq
Posts: 6
Joined: Fri Dec 21, 2012 3:59 am

Re: Is this crash exploitable ??

Post by carlmarq » Sat Jan 26, 2013 4:25 pm

Here is the disasm $epc-500 250.

Thanks...

Code: Select all

EPC       - 0x088E6D54
Cause     - 0x10000014
BadVAddr  - 0x7F800009
Status    - 0x40088613
zr:0x00000000 at:0xDEADBEEF v0:0x7F800001 v1:0x00000C2F
a0:0x08A50000 a1:0x08AB6DE3 a2:0x09FFF9B4 a3:0xDEADBEEF
t0:0xDEADBEEF t1:0xDEADBEEF t2:0xDEADBEEF t3:0xDEADBEEF
t4:0xDEADBEEF t5:0xDEADBEEF t6:0xDEADBEEF t7:0xDEADBEEF
s0:0x14141600 s1:0x00010000 s2:0x00000000 s3:0x000108DC
s4:0x41414141 s5:0x0971BEF4 s6:0x00000006 s7:0xFFFFFFFA
t8:0xDEADBEEF t9:0xDEADBEEF k0:0x09FFFB00 k1:0x00000000
gp:0x089C0170 sp:0x09FFF430 fp:0x00000002 ra:0x088E6D54
0x088E6D54: 0xAC500008 '..P.' - sw         $s0, 8($v0)
host0:/> disasm $epc-500 250
0x088E6B60: 0xAEB40004 '....' - sw         $s4, 4($s5)
0x088E6B64: 0x50A00005 '...P' - beqzl      $a1, 0x088E6B7C
0x088E6B68: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6B6C: 0x8E620078 'x.b.' - lw         $v0, 120($s3)
0x088E6B70: 0xAC82FFFC '....' - sw         $v0, -4($a0)
0x088E6B74: 0xAE650078 'x.e.' - sw         $a1, 120($s3)
0x088E6B78: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6B7C: 0xAEB60000 '....' - sw         $s6, 0($s5)
0x088E6B80: 0x2442FFC0 '..B$' - addiu      $v0, $v0, -64
0x088E6B84: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6B88: 0x0A239A2C ',.#.' - j          0x088E68B0
0x088E6B8C: 0xAEB40004 '....' - sw         $s4, 4($s5)
0x088E6B90: 0x50A00005 '...P' - beqzl      $a1, 0x088E6BA8
0x088E6B94: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6B98: 0x8E620018 '..b.' - lw         $v0, 24($s3)
0x088E6B9C: 0xAC82FFFC '....' - sw         $v0, -4($a0)
0x088E6BA0: 0xAE650018 '..e.' - sw         $a1, 24($s3)
0x088E6BA4: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6BA8: 0xAEB60000 '....' - sw         $s6, 0($s5)
0x088E6BAC: 0x2442FFF0 '..B$' - addiu      $v0, $v0, -16
0x088E6BB0: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6BB4: 0x0A239A2C ',.#.' - j          0x088E68B0
0x088E6BB8: 0xAEB40004 '....' - sw         $s4, 4($s5)
0x088E6BBC: 0x50A00005 '...P' - beqzl      $a1, 0x088E6BD4
0x088E6BC0: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6BC4: 0x8E620090 '..b.' - lw         $v0, 144($s3)
0x088E6BC8: 0xAC82FFFC '....' - sw         $v0, -4($a0)
0x088E6BCC: 0xAE650090 '..e.' - sw         $a1, 144($s3)
0x088E6BD0: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6BD4: 0xAEB60000 '....' - sw         $s6, 0($s5)
0x088E6BD8: 0x2442FF80 '..B$' - addiu      $v0, $v0, -128
0x088E6BDC: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6BE0: 0x0A239A2C ',.#.' - j          0x088E68B0
0x088E6BE4: 0xAEB40004 '....' - sw         $s4, 4($s5)
0x088E6BE8: 0x50A00005 '...P' - beqzl      $a1, 0x088E6C00
0x088E6BEC: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6BF0: 0x8E6200C0 '..b.' - lw         $v0, 192($s3)
0x088E6BF4: 0xAC82FFFC '....' - sw         $v0, -4($a0)
0x088E6BF8: 0xAE6500C0 '..e.' - sw         $a1, 192($s3)
0x088E6BFC: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6C00: 0xAEB60000 '....' - sw         $s6, 0($s5)
0x088E6C04: 0x2442FE00 '..B$' - addiu      $v0, $v0, -512
0x088E6C08: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6C0C: 0x0A239A2C ',.#.' - j          0x088E68B0
0x088E6C10: 0xAEB40004 '....' - sw         $s4, 4($s5)
0x088E6C14: 0x10600067 'g.`.' - beqz       $v1, 0x088E6DB4
0x088E6C18: 0x00000000 '....' - nop
0x088E6C1C: 0x8C620000 '..b.' - lw         $v0, 0($v1)
0x088E6C20: 0xAE22090C '..".' - sw         $v0, 2316($s1)
0x088E6C24: 0x00602021 '! `.' - move       $a0, $v1
0x088E6C28: 0x24030014 '...$' - li         $v1, 20
0x088E6C2C: 0xAC830000 '....' - sw         $v1, 0($a0)
0x088E6C30: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6C34: 0x24420014 '..B$' - addiu      $v0, $v0, 20
0x088E6C38: 0x0A239A0A '..#.' - j          0x088E6828
0x088E6C3C: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6C40: 0x10600058 'X.`.' - beqz       $v1, 0x088E6DA4
0x088E6C44: 0x00000000 '....' - nop
0x088E6C48: 0x8C620000 '..b.' - lw         $v0, 0($v1)
0x088E6C4C: 0xAE220984 '..".' - sw         $v0, 2436($s1)
0x088E6C50: 0x00602021 '! `.' - move       $a0, $v1
0x088E6C54: 0x24030100 '...$' - li         $v1, 256
0x088E6C58: 0xAC830000 '....' - sw         $v1, 0($a0)
0x088E6C5C: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6C60: 0x24420100 '..B$' - addiu      $v0, $v0, 256
0x088E6C64: 0x0A239A0A '..#.' - j          0x088E6828
0x088E6C68: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6C6C: 0x50A00005 '...P' - beqzl      $a1, 0x088E6C84
0x088E6C70: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6C74: 0x8E620030 '0.b.' - lw         $v0, 48($s3)
0x088E6C78: 0xAC82FFFC '....' - sw         $v0, -4($a0)
0x088E6C7C: 0xAE650030 '0.e.' - sw         $a1, 48($s3)
0x088E6C80: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6C84: 0xAEB60000 '....' - sw         $s6, 0($s5)
0x088E6C88: 0x2442FFEC '..B$' - addiu      $v0, $v0, -20
0x088E6C8C: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6C90: 0x0A239A2C ',.#.' - j          0x088E68B0
0x088E6C94: 0xAEB40004 '....' - sw         $s4, 4($s5)
0x088E6C98: 0x50A00005 '...P' - beqzl      $a1, 0x088E6CB0
0x088E6C9C: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6CA0: 0x8E6200A8 '..b.' - lw         $v0, 168($s3)
0x088E6CA4: 0xAC82FFFC '....' - sw         $v0, -4($a0)
0x088E6CA8: 0xAE6500A8 '..e.' - sw         $a1, 168($s3)
0x088E6CAC: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6CB0: 0xAEB60000 '....' - sw         $s6, 0($s5)
0x088E6CB4: 0x2442FF00 '..B$' - addiu      $v0, $v0, -256
0x088E6CB8: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6CBC: 0x0A239A2C ',.#.' - j          0x088E68B0
0x088E6CC0: 0xAEB40004 '....' - sw         $s4, 4($s5)
0x088E6CC4: 0x50A00005 '...P' - beqzl      $a1, 0x088E6CDC
0x088E6CC8: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6CCC: 0x8E620048 'H.b.' - lw         $v0, 72($s3)
0x088E6CD0: 0xAC82FFFC '....' - sw         $v0, -4($a0)
0x088E6CD4: 0xAE650048 'H.e.' - sw         $a1, 72($s3)
0x088E6CD8: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6CDC: 0xAEB60000 '....' - sw         $s6, 0($s5)
0x088E6CE0: 0x2442FFE8 '..B$' - addiu      $v0, $v0, -24
0x088E6CE4: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6CE8: 0x0A239A2C ',.#.' - j          0x088E68B0
0x088E6CEC: 0xAEB40004 '....' - sw         $s4, 4($s5)
0x088E6CF0: 0x10600038 '8.`.' - beqz       $v1, 0x088E6DD4
0x088E6CF4: 0x00000000 '....' - nop
0x088E6CF8: 0x8C620000 '..b.' - lw         $v0, 0($v1)
0x088E6CFC: 0xAE22093C '<.".' - sw         $v0, 2364($s1)
0x088E6D00: 0x00602021 '! `.' - move       $a0, $v1
0x088E6D04: 0x24030020 ' ..$' - li         $v1, 32
0x088E6D08: 0xAC830000 '....' - sw         $v1, 0($a0)
0x088E6D0C: 0x8E6200E0 '..b.' - lw         $v0, 224($s3)
0x088E6D10: 0x24420020 ' .B$' - addiu      $v0, $v0, 32
0x088E6D14: 0x0A239A0A '..#.' - j          0x088E6828
0x088E6D18: 0xAE6200E0 '..b.' - sw         $v0, 224($s3)
0x088E6D1C: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6D20: 0x262408E0 '..$&' - addiu      $a0, $s1, 2272
0x088E6D24: 0x0A239A78 'x.#.' - j          0x088E69E0
0x088E6D28: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6D2C: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6D30: 0x26240958 'X.$&' - addiu      $a0, $s1, 2392
0x088E6D34: 0x0A239A6D 'm.#.' - j          0x088E69B4
0x088E6D38: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6D3C: 0x3C06089B '...<' - lui        $a2, 0x89B
0x088E6D40: 0x2484D664 'd..$' - addiu      $a0, $a0, -10652
0x088E6D44: 0x240500BF '...$' - li         $a1, 191
0x088E6D48: 0x24C6D688 '...$' - addiu      $a2, $a2, -10616
0x088E6D4C: 0x0E23238C '.##.' - jal        0x088C8E30
0x088E6D50: 0x2607000C '...&' - addiu      $a3, $s0, 12
0x088E6D54: 0xAC500008 '..P.' - sw         $s0, 8($v0)
0x088E6D58: 0x262409B4 '..$&' - addiu      $a0, $s1, 2484
0x088E6D5C: 0x2456000C '..V$' - addiu      $s6, $v0, 12
0x088E6D60: 0x8E6300E0 '..c.' - lw         $v1, 224($s3)
0x088E6D64: 0x8E2509B4 '..%.' - lw         $a1, 2484($s1)
0x088E6D68: 0xAC440004 '..D.' - sw         $a0, 4($v0)
0x088E6D6C: 0x02031821 '!...' - addu       $v1, $s0, $v1
0x088E6D70: 0xAC450000 '..E.' - sw         $a1, 0($v0)
0x088E6D74: 0xACA20004 '....' - sw         $v0, 4($a1)
0x088E6D78: 0xAE6300E0 '..c.' - sw         $v1, 224($s3)
0x088E6D7C: 0x0A239A0B '..#.' - j          0x088E682C
0x088E6D80: 0xAE2209B4 '..".' - sw         $v0, 2484($s1)
0x088E6D84: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6D88: 0x262408F8 '..$&' - addiu      $a0, $s1, 2296
0x088E6D8C: 0x0A239A42 'B.#.' - j          0x088E6908
0x088E6D90: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6D94: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6D98: 0x26240970 'p.$&' - addiu      $a0, $s1, 2416
0x088E6D9C: 0x0A239A04 '..#.' - j          0x088E6810
0x088E6DA0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DA4: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6DA8: 0x26240988 '..$&' - addiu      $a0, $s1, 2440
0x088E6DAC: 0x0A239B14 '..#.' - j          0x088E6C50
0x088E6DB0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DB4: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6DB8: 0x26240910 '..$&' - addiu      $a0, $s1, 2320
0x088E6DBC: 0x0A239B09 '..#.' - j          0x088E6C24
0x088E6DC0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DC4: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6DC8: 0x262409A0 '..$&' - addiu      $a0, $s1, 2464
0x088E6DCC: 0x0A239AB6 '..#.' - j          0x088E6AD8
0x088E6DD0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DD4: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6DD8: 0x26240940 '@.$&' - addiu      $a0, $s1, 2368
0x088E6DDC: 0x0A239B40 '@.#.' - j          0x088E6D00
0x088E6DE0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DE4: 0x0E234E78 'xN#.' - jal        0x088D39E0
0x088E6DE8: 0x26240928 '(.$&' - addiu      $a0, $s1, 2344
0x088E6DEC: 0x0A239AC7 '..#.' - j          0x088E6B1C
0x088E6DF0: 0x00401821 '!.@.' - move       $v1, $v0
0x088E6DF4: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x088E6DF8: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x088E6DFC: 0x00804021 '!@..' - move       $t0, $a0
0x088E6E00: 0x8482004C 'L...' - lh         $v0, 76($a0)
0x088E6E04: 0x1840001A '..@.' - blez       $v0, 0x088E6E70
0x088E6E08: 0x00003021 '!0..' - move       $a2, $zr
0x088E6E0C: 0x8C840024 '$...' - lw         $a0, 36($a0)
0x088E6E10: 0x8D050018 '....' - lw         $a1, 24($t0)
0x088E6E14: 0x00041100 '....' - sll        $v0, $a0, 4
0x088E6E18: 0x00A23821 '!8..' - addu       $a3, $a1, $v0
0x088E6E1C: 0x8CE30000 '....' - lw         $v1, 0($a3)
0x088E6E20: 0x24020001 '...$' - li         $v0, 1
0x088E6E24: 0x50620001 '..bP' - beql       $v1, $v0, 0x088E6E2C
0x088E6E28: 0x8CE60004 '....' - lw         $a2, 4($a3)
0x088E6E2C: 0x00041900 '....' - sll        $v1, $a0, 4
0x088E6E30: 0x00A31821 '!...' - addu       $v1, $a1, $v1
0x088E6E34: 0x8C62FFE0 '..b.' - lw         $v0, -32($v1)
0x088E6E38: 0x00003821 '!8..' - move       $a3, $zr
0x088E6E3C: 0x28420007 '..B(' - slti       $v0, $v0, 7
0x088E6E40: 0x14400002 '..@.' - bnez       $v0, 0x088E6E4C
0x088E6E44: 0x2464FFE0 '..d$' - addiu      $a0, $v1, -32
0x088E6E48: 0x8C870004 '....' - lw         $a3, 4($a0)
0x088E6E4C: 0x8CE20014 '....' - lw         $v0, 20($a3)
0x088E6E50: 0x10400003 '..@.' - beqz       $v0, 0x088E6E60
0x088E6E54: 0x00402021 '! @.' - move       $a0, $v0
0x088E6E58: 0x0E2399DE '..#.' - jal        0x088E6778
0x088E6E5C: 0x8D050014 '....' - lw         $a1, 20($t0)
0x088E6E60: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x088E6E64: 0x00001021 '!...' - move       $v0, $zr
0x088E6E68: 0x03E00008 '....' - jr         $ra
0x088E6E6C: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x088E6E70: 0x8C840024 '$...' - lw         $a0, 36($a0)
0x088E6E74: 0x0A239B8B '..#.' - j          0x088E6E2C
0x088E6E78: 0x8D050018 '....' - lw         $a1, 24($t0)
0x088E6E7C: 0x3C0208A6 '...<' - lui        $v0, 0x8A6
0x088E6E80: 0x27BDFFF0 '...'' - addiu      $sp, $sp, -16
0x088E6E84: 0x2443D744 'D.C$' - addiu      $v1, $v0, -10428
0x088E6E88: 0xAFBF0000 '....' - sw         $ra, 0($sp)
0x088E6E8C: 0xAC600004 '..`.' - sw         $zr, 4($v1)
0x088E6E90: 0xAC40D744 'D.@.' - sw         $zr, -10428($v0)
0x088E6E94: 0xAC800000 '....' - sw         $zr, 0($a0)
0x088E6E98: 0x0E2399DE '..#.' - jal        0x088E6778
0x088E6E9C: 0xAC800004 '....' - sw         $zr, 4($a0)
0x088E6EA0: 0x8FBF0000 '....' - lw         $ra, 0($sp)
0x088E6EA4: 0x03E00008 '....' - jr         $ra
0x088E6EA8: 0x27BD0010 '...'' - addiu      $sp, $sp, 16
0x088E6EAC: 0x27BDFFE0 '...'' - addiu      $sp, $sp, -32
0x088E6EB0: 0xAFB20008 '....' - sw         $s2, 8($sp)
0x088E6EB4: 0xAFBF0010 '....' - sw         $ra, 16($sp)
0x088E6EB8: 0xAFB3000C '....' - sw         $s3, 12($sp)
0x088E6EBC: 0xAFB10004 '....' - sw         $s1, 4($sp)
0x088E6EC0: 0xAFB00000 '....' - sw         $s0, 0($sp)
0x088E6EC4: 0x8CB10014 '....' - lw         $s1, 20($a1)
0x088E6EC8: 0x12200022 '". .' - beqz       $s1, 0x088E6F54
0x088E6ECC: 0x01009021 '!...' - move       $s2, $t0
0x088E6ED0: 0x8E250004 '..%.' - lw         $a1, 4($s1)
0x088E6ED4: 0x58A0001D '...X' - blezl      $a1, 0x088E6F4C
0x088E6ED8: 0x8E420000 '..B.' - lw         $v0, 0($s2)
0x088E6EDC: 0x24D30004 '...$' - addiu      $s3, $a2, 4
0x088E6EE0: 0x00008021 '!...' - move       $s0, $zr
0x088E6EE4: 0x8E240000 '..$.' - lw         $a0, 0($s1)
0x088E6EE8: 0x00101900 '....' - sll        $v1, $s0, 4
0x088E6EEC: 0x00832021 '! ..' - addu       $a0, $a0, $v1
0x088E6EF0: 0x8C820000 '....' - lw         $v0, 0($a0)
0x088E6EF4: 0x28420004 '..B(' - slti       $v0, $v0, 4
0x088E6EF8: 0x14400010 '..@.' - bnez       $v0, 0x088E6F3C
0x088E6EFC: 0x26100001 '...&' - addiu      $s0, $s0, 1
0x088E6F00: 0x8C850004 '....' - lw         $a1, 4($a0)
0x088E6F04: 0x80A2000D '....' - lb         $v0, 13($a1)
0x088E6F08: 0x54400009 '..@T' - bnezl      $v0, 0x088E6F30
0x088E6F0C: 0x8E420000 '..B.' - lw         $v0, 0($s2)
0x088E6F10: 0x8E620058 'X.b.' - lw         $v0, 88($s3)
0x088E6F14: 0x80A6000C '....' - lb         $a2, 12($a1)
0x088E6F18: 0x8C430060 '`.C.' - lw         $v1, 96($v0)
0x088E6F1C: 0x10C30003 '....' - beq        $a2, $v1, 0x088E6F2C
0x088E6F20: 0x02602021 '! `.' - move       $a0, $s3
0x088E6F24: 0x0E231B29 ').#.' - jal        0x088C6CA4
0x088E6F28: 0x00000000 '....' - nop
0x088E6F2C: 0x8E420000 '..B.' - lw         $v0, 0($s2)
0x088E6F30: 0x24420001 '..B$' - addiu      $v0, $v0, 1
0x088E6F34: 0xAE420000 '..B.' - sw         $v0, 0($s2)
0x088E6F38: 0x8E250004 '..%.' - lw         $a1, 4($s1)
0x088E6F3C: 0x0205102A '*...' - slt        $v0, $s0, $a1
0x088E6F40: 0x5440FFE9 '..@T' - bnezl      $v0, 0x088E6EE8
0x088E6F44: 0x8E240000 '..$.' - lw         $a0, 0($s1)
host0:/>



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