general protection fault, probably for non-canonical address 0xdffffc001ffff11a: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x00000000ffff88d0-0x00000000ffff88d7]
CPU: 1 PID: 5052 Comm: udevd Not tainted 6.6.0-rc6-next-20231020-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:list_empty include/linux/list.h:373 [inline]
RIP: 0010:locks_remove_posix+0x100/0x510 fs/locks.c:2555
Code: 4d 8b ae 20 02 00 00 4d 85 ed 0f 84 0c 02 00 00 e8 15 60 7d ff 49 8d 55 50 48 b9 00 00 00 00 00 fc ff df 48 89 d6 48 c1 ee 03 <80> 3c 0e 00 0f 85 ae 03 00 00 49 8b 45 50 48 39 c2 0f 84 db 01 00
RSP: 0018:ffffc90003d6f948 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff8880271cca00 RCX: dffffc0000000000
RDX: 00000000ffff88d0 RSI: 000000001ffff11a RDI: ffff8880796982e0
RBP: 1ffff920007adf2b R08: 0000000000000003 R09: 0000000000004000
R10: 0000000000000000 R11: dffffc0000000000 R12: ffffc90003d6f988
R13: 00000000ffff8880 R14: ffff8880796980c0 R15: ffff8880271ccb90
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc227c3e000 CR3: 000000002000e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
filp_flush+0x11b/0x1a0 fs/open.c:1554
filp_close+0x1c/0x30 fs/open.c:1563
close_files fs/file.c:432 [inline]
put_files_struct fs/file.c:447 [inline]
put_files_struct+0x1df/0x360 fs/file.c:444
exit_files+0x82/0xb0 fs/file.c:464
do_exit+0xa51/0x2ac0 kernel/exit.c:866
do_group_exit+0xd3/0x2a0 kernel/exit.c:1021
get_signal+0x2391/0x2760 kernel/signal.c:2904
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:309
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11c/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
do_syscall_64+0x4b/0x110 arch/x86/entry/common.c:88
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fc2276be3cd
Code: Unable to access opcode bytes at 0x7fc2276be3a3.
RSP: 002b:00007ffd929ccc20 EFLAGS: 00000246 ORIG_RAX: 00000000000000ea
RAX: 0000000000000000 RBX: 00007fc227b0bc80 RCX: 00007fc2276be3cd
RDX: 0000000000000006 RSI: 00000000000013bc RDI: 00000000000013bc
RBP: 00000000000013bc R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000006
R13: 00007ffd929cce30 R14: 0000000000001000 R15: 0000000000000000
</TASK>
Modules linked in:
----------------
Code disassembly (best guess):
0: 4d 8b ae 20 02 00 00 mov 0x220(%r14),%r13
7: 4d 85 ed test %r13,%r13
a: 0f 84 0c 02 00 00 je 0x21c
10: e8 15 60 7d ff call 0xff7d602a
15: 49 8d 55 50 lea 0x50(%r13),%rdx
19: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx
20: fc ff df
23: 48 89 d6 mov %rdx,%rsi
26: 48 c1 ee 03 shr $0x3,%rsi
* 2a: 80 3c 0e 00 cmpb $0x0,(%rsi,%rcx,1) <-- trapping instruction
2e: 0f 85 ae 03 00 00 jne 0x3e2
34: 49 8b 45 50 mov 0x50(%r13),%rax
38: 48 39 c2 cmp %rax,%rdx
3b: 0f .byte 0xf
3c: 84 db test %bl,%bl
3e: 01 00 add %eax,(%rax)