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WARNING: CPU: 1 PID: 6368 at kernel/signal.c:2008 posixtimer_send_sigqueue+0x9da/0xbc0 kernel/signal.c:2008
Modules linked in:
CPU: 1 UID: 0 PID: 6368 Comm: udevd Not tainted 6.12.0-rc6-next-20241108-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:posixtimer_send_sigqueue+0x9da/0xbc0 kernel/signal.c:2008
Code: df 80 3c 08 00 74 08 48 89 df e8 c1 ad a5 00 4c 89 2b eb 51 e8 a7 32 3b 00 41 be 02 00 00 00 e9 e9 fd ff ff e8 97 32 3b 00 90 <0f> 0b 90 e9 f2 fa ff ff 4c 89 ef e8 86 33 5a 03 84 c0 0f 84 aa 01
RSP: 0018:ffffc90000a18c00 EFLAGS: 00010006
RAX: ffffffff81644979 RBX: 0000000000000001 RCX: ffff888030178000
RDX: 0000000000010000 RSI: 0000000000000021 RDI: 0000000000000009
RBP: ffffc90000a18cf8 R08: ffffffff816450cc R09: 1ffffffff2857112
R10: dffffc0000000000 R11: fffffbfff2857113 R12: ffff88802f92e084
R13: 1ffff11005f25c10 R14: ffff88802f92e000 R15: ffff88802f92e0c0
FS: 00007f78e00d6c80(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0979909ef8 CR3: 0000000024a2e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
posix_timer_queue_signal kernel/time/posix-timers.c:308 [inline]
posix_timer_fn+0xe2/0x160 kernel/time/posix-timers.c:323
__run_hrtimer kernel/time/hrtimer.c:1739 [inline]
__hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:_raw_spin_unlock+0x0/0x50 kernel/locking/spinlock.c:185
Code: 83 c4 08 4c 89 f7 5b 41 5e e9 ec 2a b5 f5 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 fa e8 b3 f5
RSP: 0018:ffffc9000c4c7850 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff888030178000
RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffff888033138c78
RBP: 0000000000000011 R08: ffffffff84ba969a R09: fffff52001898efc
R10: dffffc0000000000 R11: fffff52001898efc R12: ffff888033138cb8
R13: ffffc9000c4c7aa0 R14: ffff888033138c78 R15: dffffc0000000000
spin_unlock include/linux/spinlock.h:391 [inline]
lockref_get_not_dead+0x78/0xc0 lib/lockref.c:190
__legitimize_path fs/namei.c:776 [inline]
legitimize_path fs/namei.c:786 [inline]
try_to_unlazy+0x12c/0x5b0 fs/namei.c:847
may_lookup fs/namei.c:1828 [inline]
link_path_walk+0x83e/0xea0 fs/namei.c:2425
path_lookupat+0xa9/0x450 fs/namei.c:2633
filename_lookup+0x2a3/0x670 fs/namei.c:2663
vfs_statx+0x103/0x490 fs/stat.c:354
vfs_fstatat+0xe5/0x130 fs/stat.c:376
__do_sys_newfstatat fs/stat.c:540 [inline]
__se_sys_newfstatat fs/stat.c:534 [inline]
__x64_sys_newfstatat+0x11d/0x1a0 fs/stat.c:534
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f78dfd165f4
Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8
RSP: 002b:00007fff5d75b268 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000564c97191a40 RCX: 00007f78dfd165f4
RDX: 00007fff5d75b278 RSI: 00007fff5d75b708 RDI: 00000000ffffff9c
RBP: 00007fff5d75b308 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff5d75b708
R13: 00007fff5d75b278 R14: 0000564c97171910 R15: 0000564c7406fa04
----------------
Code disassembly (best guess):
0: 83 c4 08 add $0x8,%esp
3: 4c 89 f7 mov %r14,%rdi
6: 5b pop %rbx
7: 41 5e pop %r14
9: e9 ec 2a b5 f5 jmp 0xf5b52afa
e: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
15: 00 00 00
18: 66 90 xchg %ax,%ax
1a: 90 nop
1b: 90 nop
1c: 90 nop
1d: 90 nop
1e: 90 nop
1f: 90 nop
20: 90 nop
21: 90 nop
22: 90 nop
23: 90 nop
24: 90 nop
25: 90 nop
26: 90 nop
27: 90 nop
28: 90 nop
29: 90 nop
* 2a: f3 0f 1e fa endbr64 <-- trapping instruction
2e: 53 push %rbx
2f: 48 89 fb mov %rdi,%rbx
32: 48 83 c7 18 add $0x18,%rdi
36: 48 8b 74 24 08 mov 0x8(%rsp),%rsi
3b: e8 fa e8 b3 f5 call 0xf5b3e93a