------------[ cut here ]------------ WARNING: CPU: 1 PID: 13666 at kernel/workqueue.c:2257 __queue_work+0xc3a/0x1080 kernel/workqueue.c:2256 Modules linked in: CPU: 1 UID: 0 PID: 13666 Comm: syz.2.2076 Not tainted 6.13.0-rc3-syzkaller-00017-gf44d154d6e3d #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 6f cc 98 00 8b 5b 2c 31 ff 83 e3 20 89 de e8 e0 f9 36 00 85 db 75 60 e8 97 f7 36 00 90 <0f> 0b 90 e9 f9 f7 ff ff e8 89 f7 36 00 90 0f 0b 90 e9 7e f6 ff ff RSP: 0018:ffffc90000a18be8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000100 RCX: ffffffff81631bc1 RDX: ffff88807e531e00 RSI: ffffffff81631c19 RDI: 0000000000000005 RBP: ffff88807d118930 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000000 R12: 1ffff9200014318f R13: 0000000000000001 R14: 0000000080000101 R15: ffff88807d891800 FS: 00007fa540f076c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200b6030 CR3: 000000003102c000 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:finish_task_switch.isra.0+0x220/0xcc0 kernel/sched/core.c:5243 Code: a9 0a 00 00 44 8b 0d e3 b7 f6 0e 45 85 c9 0f 85 c0 01 00 00 48 89 df e8 ae f8 ff ff e8 49 f7 38 00 fb 65 48 8b 1d 30 0c 9b 7e <48> 8d bb f8 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 RSP: 0018:ffffc900000d74d0 EFLAGS: 00000206 RAX: 0000000000011ebd RBX: ffff88807e531e00 RCX: 1ffffffff20be211 RDX: 0000000000000000 RSI: ffffffff8b6cd860 RDI: ffffffff8bd1d9e0 RBP: ffffc900000d7518 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff905f52d7 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff888030e33c00 R14: 0000000000000000 R15: 0000000000000000 context_switch kernel/sched/core.c:5372 [inline] __schedule+0xe60/0x5ad0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6848 schedule_timeout+0x244/0x280 kernel/time/sleep_timeout.c:75 unix_wait_for_peer+0x247/0x280 net/unix/af_unix.c:1529 unix_dgram_sendmsg+0x180f/0x19e0 net/unix/af_unix.c:2131 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] ____sys_sendmsg+0xab2/0xc90 net/socket.c:2583 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2637 __sys_sendmmsg+0x201/0x420 net/socket.c:2726 __do_sys_sendmmsg net/socket.c:2753 [inline] __se_sys_sendmmsg net/socket.c:2750 [inline] __x64_sys_sendmmsg+0x9c/0x100 net/socket.c:2750 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: 0033:0x7fa540185d29 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:00007fa540f07038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fa540375fa0 RCX: 00007fa540185d29 RDX: 0000000000000318 RSI: 00000000200bd000 RDI: 0000000000000004 RBP: 00007fa540201a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa540375fa0 R15: 00007ffd6f044a68 ---------------- Code disassembly (best guess): 0: a9 0a 00 00 44 test $0x4400000a,%eax 5: 8b 0d e3 b7 f6 0e mov 0xef6b7e3(%rip),%ecx # 0xef6b7ee b: 45 85 c9 test %r9d,%r9d e: 0f 85 c0 01 00 00 jne 0x1d4 14: 48 89 df mov %rbx,%rdi 17: e8 ae f8 ff ff call 0xfffff8ca 1c: e8 49 f7 38 00 call 0x38f76a 21: fb sti 22: 65 48 8b 1d 30 0c 9b mov %gs:0x7e9b0c30(%rip),%rbx # 0x7e9b0c5a 29: 7e * 2a: 48 8d bb f8 15 00 00 lea 0x15f8(%rbx),%rdi <-- trapping instruction 31: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 38: fc ff df 3b: 48 89 fa mov %rdi,%rdx 3e: 48 rex.W 3f: c1 .byte 0xc1