------------[ cut here ]------------ WARNING: CPU: 0 PID: 11942 at kernel/workqueue.c:2257 __queue_work+0xc3a/0x1080 kernel/workqueue.c:2256 Modules linked in: CPU: 0 UID: 0 PID: 11942 Comm: syz.1.1195 Not tainted 6.13.0-rc3-syzkaller-00136-g8faabc041a00 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:__queue_work+0xc3a/0x1080 kernel/workqueue.c:2256 Code: 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 1f c5 98 00 8b 5b 2c 31 ff 83 e3 20 89 de e8 e0 fa 36 00 85 db 75 60 e8 97 f8 36 00 90 <0f> 0b 90 e9 f9 f7 ff ff e8 89 f8 36 00 90 0f 0b 90 e9 7e f6 ff ff RSP: 0018:ffffc90000007be8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000100 RCX: ffffffff81631bd1 RDX: ffff88802d613c00 RSI: ffffffff81631c29 RDI: 0000000000000005 RBP: ffff88807a9d0930 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000001 R12: 1ffff92000000f8f R13: 0000000000000001 R14: 0000000080000101 R15: ffff888052a6d800 FS: 00007f7a0d2d46c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f048b937eca CR3: 000000004b9da000 CR4: 0000000000350ef0 Call Trace: call_timer_fn+0x1a3/0x610 kernel/time/timer.c:1793 expire_timers kernel/time/timer.c:1839 [inline] __run_timers+0x56a/0x930 kernel/time/timer.c:2418 __run_timer_base kernel/time/timer.c:2430 [inline] __run_timer_base kernel/time/timer.c:2422 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2439 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2449 handle_softirqs+0x216/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 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+0x31/0x80 kernel/locking/spinlock.c:194 Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 46 a2 4c f6 48 89 df e8 8e 21 4d f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 85 06 3e f6 65 8b 05 e6 c3 d9 74 85 c0 74 16 5b RSP: 0018:ffffc90003f5f818 EFLAGS: 00000246 RAX: 0000000000000006 RBX: ffff888042b5a800 RCX: 1ffffffff2dd264c RDX: 0000000000000000 RSI: ffffffff8b6cd860 RDI: ffffffff8bd1dc60 RBP: 0000000000000286 R08: 0000000000000001 R09: fffffbfff2dc95af R10: ffffffff96e4ad7f R11: 0000000000000004 R12: 0000000000000002 R13: ffff888042b5a840 R14: ffff888042b5a1e8 R15: ffff888042b5a668 __unix_dgram_recvmsg+0x32a/0xe50 net/unix/af_unix.c:2463 unix_dgram_recvmsg+0xd0/0x110 net/unix/af_unix.c:2538 sock_recvmsg_nosec net/socket.c:1033 [inline] ____sys_recvmsg+0x5fb/0x6b0 net/socket.c:2801 ___sys_recvmsg+0x115/0x1a0 net/socket.c:2845 do_recvmmsg+0x2f8/0x740 net/socket.c:2940 __sys_recvmmsg net/socket.c:3014 [inline] __do_sys_recvmmsg net/socket.c:3037 [inline] __se_sys_recvmmsg net/socket.c:3030 [inline] __x64_sys_recvmmsg+0x239/0x290 net/socket.c:3030 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7a0c585d29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7a0d2d4038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f7a0c776080 RCX: 00007f7a0c585d29 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00007f7a0c601aa8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7a0c776080 R15: 00007ffe61becd58 ---------------- Code disassembly (best guess): 0: f5 cmc 1: 53 push %rbx 2: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 7: 48 89 fb mov %rdi,%rbx a: 48 83 c7 18 add $0x18,%rdi e: e8 46 a2 4c f6 call 0xf64ca259 13: 48 89 df mov %rbx,%rdi 16: e8 8e 21 4d f6 call 0xf64d21a9 1b: f7 c5 00 02 00 00 test $0x200,%ebp 21: 75 23 jne 0x46 23: 9c pushf 24: 58 pop %rax 25: f6 c4 02 test $0x2,%ah 28: 75 37 jne 0x61 * 2a: bf 01 00 00 00 mov $0x1,%edi <-- trapping instruction 2f: e8 85 06 3e f6 call 0xf63e06b9 34: 65 8b 05 e6 c3 d9 74 mov %gs:0x74d9c3e6(%rip),%eax # 0x74d9c421 3b: 85 c0 test %eax,%eax 3d: 74 16 je 0x55 3f: 5b pop %rbx