------------[ cut here ]------------
WARNING: CPU: 1 PID: 11 at kernel/workqueue.c:1441 __queue_work+0xe2d/0xfb0 kernel/workqueue.c:1441
Modules linked in:
CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 6.1.140-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: netns cleanup_net
RIP: 0010:__queue_work+0xe2d/0xfb0 kernel/workqueue.c:1441
Code: e9 9d fc ff ff 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 0f 8c c7 fc ff ff 48 8b 3c 24 e8 8d 2d 7f 00 e9 b9 fc ff ff e8 93 b7 2d 00 <0f> 0b 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 7d b7 2d 00
RSP: 0018:ffffc900001e0ae8 EFLAGS: 00010046
RAX: ffffffff81531f7d RBX: 0000000000010000 RCX: ffff88813fe63b80
RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1bfd006
R10: fffffbfff1bfd006 R11: 1ffffffff1bfd005 R12: ffff88801de42800
R13: ffff88801de429c0 R14: 0000000000000008 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b2dcdac138 CR3: 0000000027c6e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
call_timer_fn+0x1a0/0x670 kernel/time/timer.c:1504
expire_timers kernel/time/timer.c:1544 [inline]
__run_timers+0x550/0x7c0 kernel/time/timer.c:1820
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
handle_softirqs+0x2a1/0x920 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:661
irq_exit_rcu+0x5/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:console_emit_next_record+0xab0/0xc90 kernel/printk/printk.c:2786
Code: f6 6d 1a 00 4d 85 ff 75 16 e8 ec 6d 1a 00 eb 15 e8 e5 6d 1a 00 e8 c0 c7 a8 08 4d 85 ff 74 ea e8 d6 6d 1a 00 fb 48 8b 5c 24 48 <48> c7 84 24 80 00 00 00 0e 36 e0 45 4a c7 04 2b 00 00 00 00 4a c7
RSP: 0018:ffffc90000107440 EFLAGS: 00000293
RAX: ffffffff8166693a RBX: 1ffff92000020e98 RCX: ffff88813fe63b80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000107680 R08: dffffc0000000000 R09: fffffbfff2117049
R10: fffffbfff2117049 R11: 1ffffffff2117048 R12: ffffffff816666bd
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000200
console_flush_all kernel/printk/printk.c:-1 [inline]
console_unlock+0x223/0x630 kernel/printk/printk.c:2906
vprintk_emit+0x489/0x680 kernel/printk/printk.c:2303
_printk+0xcc/0x110 kernel/printk/printk.c:2328
__dev_set_promiscuity+0x1d3/0x5b0 net/core/dev.c:8418
dev_set_promiscuity+0x4c/0xe0 net/core/dev.c:8457
hsr_del_port+0x187/0x1e0 net/hsr/hsr_slave.c:216
hsr_del_ports+0x2d/0x90 net/hsr/hsr_device.c:393
hsr_dellink+0x3f/0x70 net/hsr/hsr_netlink.c:113
default_device_exit_batch+0x911/0xa50 net/core/dev.c:11486
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x77b/0xb80 net/core/net_namespace.c:640
process_one_work+0x898/0x1160 kernel/workqueue.c:2292
worker_thread+0xaa2/0x1250 kernel/workqueue.c:2439
kthread+0x29d/0x330 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: f6 6d 1a imulb 0x1a(%rbp)
3: 00 4d 85 add %cl,-0x7b(%rbp)
6: ff 75 16 push 0x16(%rbp)
9: e8 ec 6d 1a 00 call 0x1a6dfa
e: eb 15 jmp 0x25
10: e8 e5 6d 1a 00 call 0x1a6dfa
15: e8 c0 c7 a8 08 call 0x8a8c7da
1a: 4d 85 ff test %r15,%r15
1d: 74 ea je 0x9
1f: e8 d6 6d 1a 00 call 0x1a6dfa
24: fb sti
25: 48 8b 5c 24 48 mov 0x48(%rsp),%rbx
* 2a: 48 c7 84 24 80 00 00 movq $0x45e0360e,0x80(%rsp) <-- trapping instruction
31: 00 0e 36 e0 45
36: 4a c7 04 2b 00 00 00 movq $0x0,(%rbx,%r13,1)
3d: 00
3e: 4a rex.WX
3f: c7 .byte 0xc7