[Android 5.10] general protection fault in path_openat

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 43c801dc3325 Revert "ASoC: hdac_hdmi: use set_stream() ins..
git tree: android13-5.10-lts
console+strace: https://syzkaller.appspot.com/x/log.txt?x=115871d9280000
kernel config: https://syzkaller.appspot.com/x/.config?x=8c298cd1af0b8136
dashboard link: https://syzkaller.appspot.com/bug?extid=ff97a14204e1de3f1a08
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11043391280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=165b79ee280000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/df726002fbe5/disk-43c801dc.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/2b767931d62c/vmlinux-43c801dc.xz
kernel image: https://storage.googleapis.com/syzbot-assets/9048fda500c7/bzImage-43c801dc.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ff97a1...@syzkaller.appspotmail.com

general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 289 Comm: syz-executor241 Not tainted 5.10.178-syzkaller-00127-g43c801dc3325 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
RIP: 0010:__d_entry_type include/linux/dcache.h:400 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:405 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:451 [inline]
RIP: 0010:atomic_open fs/namei.c:3136 [inline]
RIP: 0010:lookup_open fs/namei.c:3225 [inline]
RIP: 0010:open_last_lookups fs/namei.c:3323 [inline]
RIP: 0010:path_openat+0x17ab/0x3000 fs/namei.c:3512
Code: b6 04 30 84 c0 0f 85 d9 07 00 00 48 8b 44 24 30 80 60 01 f8 e9 69 ee ff ff e8 c1 74 b7 ff 4c 8b 64 24 20 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 8f 07 00 00 41 8b 1f be 00 00 70 00 21
RSP: 0018:ffffc90000b17920 EFLAGS: 00010247
RAX: 0000000000000000 RBX: ffff88811ec4fb18 RCX: ffff88811edb2780
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffffc90000b17b50 R08: ffffffff81b5b6db R09: ffffed1023880a50
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88811c405250
R13: 0000000000008000 R14: dffffc0000000000 R15: 0000000000000004
FS: 00007fd2db5b3700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd2db5b3718 CR3: 000000011ec09000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
do_filp_open+0x21c/0x460 fs/namei.c:3542
do_sys_openat2+0x13f/0x6e0 fs/open.c:1217
do_sys_open fs/open.c:1233 [inline]
__do_sys_openat fs/open.c:1249 [inline]
__se_sys_openat fs/open.c:1244 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1244
do_syscall_64+0x34/0x70
entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7fd2db622469
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd2db5b32f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fd2db6ac4d0 RCX: 00007fd2db622469
RDX: 0000000000000000 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007fd2db67a01c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffdd3cd35e
R13: 00007fd2db67a038 R14: 2f30656c69662f2e R15: 00007fd2db6ac4d8
Modules linked in:
---[ end trace 1893fe57b880c2fd ]---
RIP: 0010:__d_entry_type include/linux/dcache.h:400 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:405 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:451 [inline]
RIP: 0010:atomic_open fs/namei.c:3136 [inline]
RIP: 0010:lookup_open fs/namei.c:3225 [inline]
RIP: 0010:open_last_lookups fs/namei.c:3323 [inline]
RIP: 0010:path_openat+0x17ab/0x3000 fs/namei.c:3512
Code: b6 04 30 84 c0 0f 85 d9 07 00 00 48 8b 44 24 30 80 60 01 f8 e9 69 ee ff ff e8 c1 74 b7 ff 4c 8b 64 24 20 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 8f 07 00 00 41 8b 1f be 00 00 70 00 21
RSP: 0018:ffffc90000b17920 EFLAGS: 00010247
RAX: 0000000000000000 RBX: ffff88811ec4fb18 RCX: ffff88811edb2780
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffffc90000b17b50 R08: ffffffff81b5b6db R09: ffffed1023880a50
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88811c405250
R13: 0000000000008000 R14: dffffc0000000000 R15: 0000000000000004
FS: 00007fd2db5b3700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f24ae567ae0 CR3: 000000011ec09000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: b6 04 mov $0x4,%dh
2: 30 84 c0 0f 85 d9 07 xor %al,0x7d9850f(%rax,%rax,8)
9: 00 00 add %al,(%rax)
b: 48 8b 44 24 30 mov 0x30(%rsp),%rax
10: 80 60 01 f8 andb $0xf8,0x1(%rax)
14: e9 69 ee ff ff jmpq 0xffffee82
19: e8 c1 74 b7 ff callq 0xffb774df
1e: 4c 8b 64 24 20 mov 0x20(%rsp),%r12
23: 4c 89 f8 mov %r15,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 0f 85 8f 07 00 00 jne 0x7c6
37: 41 8b 1f mov (%r15),%ebx
3a: be 00 00 70 00 mov $0x700000,%esi
3f: 21 .byte 0x21


---
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#syz undup

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 19c0ed55a470 Merge 5.15.106 into android13-5.15-lts
git tree: android13-5.15-lts
console+strace: https://syzkaller.appspot.com/x/log.txt?x=17315691280000
kernel config: https://syzkaller.appspot.com/x/.config?x=e8bc8779358f24fb
dashboard link: https://syzkaller.appspot.com/bug?extid=ea487d1ec1a25689e4d2

compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11a12b31280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14d1bb65280000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/8ade0e897782/disk-19c0ed55.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/203011b1fd4d/vmlinux-19c0ed55.xz
kernel image: https://storage.googleapis.com/syzbot-assets/7f39bb0b7ba9/bzImage-19c0ed55.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:

Reported-by: syzbot+ea487d...@syzkaller.appspotmail.com

general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]

CPU: 1 PID: 295 Comm: syz-executor366 Not tainted 5.15.106-syzkaller-00249-g19c0ed55a470 #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023

RIP: 0010:__d_entry_type include/linux/dcache.h:404 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:409 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:455 [inline]
RIP: 0010:atomic_open fs/namei.c:3271 [inline]
RIP: 0010:lookup_open fs/namei.c:3363 [inline]
RIP: 0010:open_last_lookups fs/namei.c:3462 [inline]
RIP: 0010:path_openat+0x185b/0x2f40 fs/namei.c:3669
Code: b6 04 28 84 c0 0f 85 ef 07 00 00 48 8b 44 24 28 80 60 01 f8 e9 cc ed ff ff e8 31 92 b3 ff 48 8b 5c 24 10 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 a6 07 00 00 49 89 de 8b 1b be 00 00 70
RSP: 0018:ffffc90000987920 EFLAGS: 00010247
RAX: 0000000000000000 RBX: 0000000000000004 RCX: ffff88811e1e2780

RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000

RBP: ffffc90000987b70 R08: ffffffff81bf4120 R09: ffffed102380b294
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000987bc0
R13: dffffc0000000000 R14: 0000000000000004 R15: ffffc90000987da0
FS: 00007f3dcc17e700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 00007f3dcc17e718 CR3: 000000011b341000 CR4: 00000000003506a0

DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Call Trace:
<TASK>
do_filp_open+0x21c/0x460 fs/namei.c:3699
do_sys_openat2+0x13b/0x500 fs/open.c:1234
do_sys_open fs/open.c:1250 [inline]
__do_sys_openat fs/open.c:1266 [inline]
__se_sys_openat fs/open.c:1261 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1261
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f3dcc1ed469

Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48

RSP: 002b:00007f3dcc17e2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3dcc2774d0 RCX: 00007f3dcc1ed469

RDX: 0000000000000000 RSI: 0000000020000040 RDI: ffffffffffffff9c

RBP: 00007f3dcc24501c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff64b8514e
R13: 00007f3dcc245038 R14: 2f30656c69662f2e R15: 00007f3dcc2774d8
</TASK>
Modules linked in:
---[ end trace 849502684630d515 ]---
RIP: 0010:__d_entry_type include/linux/dcache.h:404 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:409 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:455 [inline]
RIP: 0010:atomic_open fs/namei.c:3271 [inline]
RIP: 0010:lookup_open fs/namei.c:3363 [inline]
RIP: 0010:open_last_lookups fs/namei.c:3462 [inline]
RIP: 0010:path_openat+0x185b/0x2f40 fs/namei.c:3669
Code: b6 04 28 84 c0 0f 85 ef 07 00 00 48 8b 44 24 28 80 60 01 f8 e9 cc ed ff ff e8 31 92 b3 ff 48 8b 5c 24 10 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 a6 07 00 00 49 89 de 8b 1b be 00 00 70
RSP: 0018:ffffc90000987920 EFLAGS: 00010247
RAX: 0000000000000000 RBX: 0000000000000004 RCX: ffff88811e1e2780

RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000

RBP: ffffc90000987b70 R08: ffffffff81bf4120 R09: ffffed102380b294
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000987bc0
R13: dffffc0000000000 R14: 0000000000000004 R15: ffffc90000987da0
FS: 00007f3dcc17e700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 00007f3dcc17e718 CR3: 000000011b341000 CR4: 00000000003506a0

DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: b6 04 mov $0x4,%dh

2: 28 84 c0 0f 85 ef 07 sub %al,0x7ef850f(%rax,%rax,8)

9: 00 00 add %al,(%rax)

b: 48 8b 44 24 28 mov 0x28(%rsp),%rax

10: 80 60 01 f8 andb $0xf8,0x1(%rax)

14: e9 cc ed ff ff jmpq 0xffffede5
19: e8 31 92 b3 ff callq 0xffb3924f
1e: 48 8b 5c 24 10 mov 0x10(%rsp),%rbx
23: 48 89 d8 mov %rbx,%rax

26: 48 c1 e8 03 shr $0x3,%rax

* 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction

2f: 84 c0 test %al,%al

31: 0f 85 a6 07 00 00 jne 0x7dd
37: 49 89 de mov %rbx,%r14
3a: 8b 1b mov (%rbx),%ebx
3c: be .byte 0xbe
3d: 00 00 add %al,(%rax)
3f: 70 .byte 0x70

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: cffbdd825e02 ANDROID: ABI: Update oplus symbol list
git tree: android14-6.1
console+strace: https://syzkaller.appspot.com/x/log.txt?x=1799d839280000
kernel config: https://syzkaller.appspot.com/x/.config?x=772a621c45fe488b
dashboard link: https://syzkaller.appspot.com/bug?extid=8aec6edbebda4c971b84

compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10a05365280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17ea2555280000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ed6179c04124/disk-cffbdd82.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ba554ef0cb8d/vmlinux-cffbdd82.xz
kernel image: https://storage.googleapis.com/syzbot-assets/514dd1219229/bzImage-cffbdd82.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:

Reported-by: syzbot+8aec6e...@syzkaller.appspotmail.com

general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]

CPU: 1 PID: 296 Comm: syz-executor266 Not tainted 6.1.25-syzkaller-00258-gcffbdd825e02 #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023

RIP: 0010:__d_entry_type include/linux/dcache.h:386 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:391 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:437 [inline]
RIP: 0010:atomic_open fs/namei.c:3292 [inline]
RIP: 0010:lookup_open fs/namei.c:3384 [inline]
RIP: 0010:open_last_lookups fs/namei.c:3481 [inline]
RIP: 0010:path_openat+0x133f/0x2d60 fs/namei.c:3711
Code: ff ff 48 8b 3c 24 e8 30 e2 02 00 48 63 db 4c 8b 74 24 08 eb 5f e8 71 ca ae ff 4c 8b 74 24 08 48 8b 1c 24 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 1c 0b 00 00 48 89 1c 24 8b 1b be 00 00
RSP: 0018:ffffc90000e67940 EFLAGS: 00010247
RAX: 0000000000000000 RBX: 0000000000000004 RCX: ffff888109b21300

RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000

RBP: ffffc90000e67b30 R08: ffffffff81c7c3bb R09: fffff520001ccf0f
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc90000e67b88 R15: ffffc90000e67da0
FS: 00007f280d47e700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 0000563ca7204b68 CR3: 0000000120a70000 CR4: 00000000003506a0

DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>

do_filp_open+0x230/0x480 fs/namei.c:3741
do_sys_openat2+0x13f/0x850 fs/open.c:1333
do_sys_open fs/open.c:1349 [inline]
__do_sys_openat fs/open.c:1365 [inline]
__se_sys_openat fs/open.c:1360 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1360

do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80

entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f280d4ed469

Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48

RSP: 002b:00007f280d47e2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f280d5774d0 RCX: 00007f280d4ed469

RDX: 0000000000000000 RSI: 0000000020000040 RDI: ffffffffffffff9c

RBP: 00007f280d54501c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffac99dc4e
R13: 00007f280d545038 R14: 2f30656c69662f2e R15: 00007f280d5774d8
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__d_entry_type include/linux/dcache.h:386 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:391 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:437 [inline]
RIP: 0010:atomic_open fs/namei.c:3292 [inline]
RIP: 0010:lookup_open fs/namei.c:3384 [inline]
RIP: 0010:open_last_lookups fs/namei.c:3481 [inline]
RIP: 0010:path_openat+0x133f/0x2d60 fs/namei.c:3711
Code: ff ff 48 8b 3c 24 e8 30 e2 02 00 48 63 db 4c 8b 74 24 08 eb 5f e8 71 ca ae ff 4c 8b 74 24 08 48 8b 1c 24 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 1c 0b 00 00 48 89 1c 24 8b 1b be 00 00
RSP: 0018:ffffc90000e67940 EFLAGS: 00010247
RAX: 0000000000000000 RBX: 0000000000000004 RCX: ffff888109b21300

RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000

RBP: ffffc90000e67b30 R08: ffffffff81c7c3bb R09: fffff520001ccf0f
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc90000e67b88 R15: ffffc90000e67da0
FS: 00007f280d47e700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 0000563ca7204b68 CR3: 0000000120a70000 CR4: 00000000003506a0

DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------

Code disassembly (best guess), 1 bytes skipped:
0: ff 48 8b decl -0x75(%rax)
3: 3c 24 cmp $0x24,%al
5: e8 30 e2 02 00 callq 0x2e23a
a: 48 63 db movslq %ebx,%rbx
d: 4c 8b 74 24 08 mov 0x8(%rsp),%r14
12: eb 5f jmp 0x73
14: e8 71 ca ae ff callq 0xffaeca8a
19: 4c 8b 74 24 08 mov 0x8(%rsp),%r14
1e: 48 8b 1c 24 mov (%rsp),%rbx
22: 48 89 d8 mov %rbx,%rax
25: 48 c1 e8 03 shr $0x3,%rax
* 29: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 0f 85 1c 0b 00 00 jne 0xb52
36: 48 89 1c 24 mov %rbx,(%rsp)

3a: 8b 1b mov (%rbx),%ebx
3c: be .byte 0xbe

[syzbot]

syzbot has bisected this issue to:

commit 57f3ff9648991998d008ecf32f2f9e78a08bfb8b
Author: Daniel Rosenberg <dro...@google.com>
Date: Thu Dec 2 21:50:02 2021 +0000

ANDROID: fuse-bpf v1.1

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16351bf9280000
start commit: cffbdd825e02 ANDROID: ABI: Update oplus symbol list
git tree: android14-6.1
final oops: https://syzkaller.appspot.com/x/report.txt?x=15351bf9280000
console output: https://syzkaller.appspot.com/x/log.txt?x=11351bf9280000

kernel config: https://syzkaller.appspot.com/x/.config?x=772a621c45fe488b
dashboard link: https://syzkaller.appspot.com/bug?extid=8aec6edbebda4c971b84

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10a05365280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17ea2555280000

Reported-by: syzbot+8aec6e...@syzkaller.appspotmail.com
Fixes: 57f3ff964899 ("ANDROID: fuse-bpf v1.1")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

[syzbot]

syzbot has bisected this issue to:

commit f5f4199c102aa676998b42abff60d071385c1c0c

Author: Daniel Rosenberg <dro...@google.com>
Date: Thu Dec 2 21:50:02 2021 +0000

ANDROID: fuse-bpf v1.1

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=140e256a280000
start commit: 19c0ed55a470 Merge 5.15.106 into android13-5.15-lts
git tree: android13-5.15-lts
final oops: https://syzkaller.appspot.com/x/report.txt?x=160e256a280000
console output: https://syzkaller.appspot.com/x/log.txt?x=120e256a280000

kernel config: https://syzkaller.appspot.com/x/.config?x=e8bc8779358f24fb
dashboard link: https://syzkaller.appspot.com/bug?extid=ea487d1ec1a25689e4d2

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11a12b31280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14d1bb65280000

Reported-by: syzbot+ea487d...@syzkaller.appspotmail.com
Fixes: f5f4199c102a ("ANDROID: fuse-bpf v1.1")

[syzbot]

syzbot has bisected this issue to:

commit 6be5b06e4195b002c52a1c2c82573ea7a76ce111
Author: Daniel Rosenberg <dro...@google.com>
Date: Thu Dec 2 22:38:56 2021 +0000

ANDROID: fuse-bpf v1

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=107527e9280000
start commit: 43c801dc3325 Revert "ASoC: hdac_hdmi: use set_stream() ins..
git tree: android13-5.10-lts
final oops: https://syzkaller.appspot.com/x/report.txt?x=127527e9280000
console output: https://syzkaller.appspot.com/x/log.txt?x=147527e9280000

kernel config: https://syzkaller.appspot.com/x/.config?x=8c298cd1af0b8136
dashboard link: https://syzkaller.appspot.com/bug?extid=ff97a14204e1de3f1a08

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11043391280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=165b79ee280000

Reported-by: syzbot+ff97a1...@syzkaller.appspotmail.com
Fixes: 6be5b06e4195 ("ANDROID: fuse-bpf v1")

[syzbot]

Bug presence analysis results: the bug reproduces only on Android 6.1.

syzbot has run the reproducer on other relevant kernel trees and got
the following results:

android14-6.1 (commit cffbdd825e02688553e52f59f6dd2978f2357a17) on 2023/05/21:
general protection fault in path_openat
Report: https://syzkaller.appspot.com/x/report.txt?x=11843391280000

lts (commit b1644a0031cfb3ca2cbd84c92f771f8ebb62302d) on 2023/05/21:
Didn't crash.

upstream (commit 0dd2a6fb1e34d6dcb96806bc6b111388ad324722) on 2023/05/21:
Didn't crash.

More details can be found at:
https://syzkaller.appspot.com/bug?extid=8aec6edbebda4c971b84