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WARNING: CPU: 0 PID: 22857 at kernel/signal.c:2050 posixtimer_send_sigqueue+0xa08/0xce0 kernel/signal.c:2050
Modules linked in:
CPU: 0 UID: 0 PID: 22857 Comm: syz.4.3323 Not tainted 6.13.0-rc7-syzkaller-00019-gc45323b7560e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:posixtimer_send_sigqueue+0xa08/0xce0 kernel/signal.c:2050
Code: 00 0f 85 f4 02 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 23 1e 3b 00 4c 8b 64 24 08 e9 28 ff ff ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 80 3c 03 00 74 08 4c 89 f7
RSP: 0018:ffffc90000007c00 EFLAGS: 00010086
RAX: dffffc0000000000 RBX: 1ffff1100cfece1f RCX: ffff88805cdd5a00
RDX: 0000000000010000 RSI: 0000000000002000 RDI: 0000000000000000
RBP: ffffc90000007cf8 R08: ffffffff81647150 R09: 1ffffffff2854b12
R10: dffffc0000000000 R11: fffffbfff2854b13 R12: ffff888067f670e0
R13: 1ffff1100cfece2c R14: ffff888067f670f8 R15: ffff888067f671a0
FS: 0000000000000000(0000) GS:ffff8880b8600000(0063) knlGS:00000000f5106b40
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020044000 CR3: 000000006c7f0000 CR4: 00000000003526f0
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/0xd30 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_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 7e 2f 3a f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 43 d6 a1 f5 65 8b 05 b4 18 38 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc9000475fc40 EFLAGS: 00000206
RAX: 767ad86469bf0500 RBX: 1ffff920008ebf8c RCX: ffffffff9a3ac903
RDX: dffffc0000000000 RSI: ffffffff8c0a98e0 RDI: 0000000000000001
RBP: ffffc9000475fcd0 R08: ffffffff901983b7 R09: 1ffffffff2033076
R10: dffffc0000000000 R11: fffffbfff2033077 R12: dffffc0000000000
R13: 1ffff920008ebf88 R14: ffffc9000475fc60 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
unlock_timer kernel/time/posix-timers.c:128 [inline]
do_timer_settime+0x37f/0x3e0 kernel/time/posix-timers.c:908
__do_sys_timer_settime32 kernel/time/posix-timers.c:950 [inline]
__se_sys_timer_settime32 kernel/time/posix-timers.c:937 [inline]
__ia32_sys_timer_settime32+0x1a6/0x250 kernel/time/posix-timers.c:937
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386
do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7fb3579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f510655c EFLAGS: 00000206 ORIG_RAX: 0000000000000104
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000020000340 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: 9c pushf
1: 8f 44 24 20 pop 0x20(%rsp)
5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1)
a: 74 08 je 0x14
c: 4c 89 f7 mov %r14,%rdi
f: e8 7e 2f 3a f6 call 0xf63a2f92
14: f6 44 24 21 02 testb $0x2,0x21(%rsp)
19: 75 52 jne 0x6d
1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 43 d6 a1 f5 call 0xf5a1d672 <-- trapping instruction
2f: 65 8b 05 b4 18 38 74 mov %gs:0x743818b4(%rip),%eax # 0x743818ea
36: 85 c0 test %eax,%eax
38: 74 43 je 0x7d
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss