------------[ cut here ]------------
WARNING: CPU: 0 PID: 6421 at kernel/workqueue.c:1441 __queue_work+0xddc/0xf90 kernel/workqueue.c:-1
Modules linked in:
CPU: 0 PID: 6421 Comm: syz-executor Not tainted 6.1.132-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__queue_work+0xddc/0xf90 kernel/workqueue.c:1441
Code: 8b 3c 24 e8 96 55 88 00 e9 d9 fc ff ff e8 5c f4 30 00 89 ee 48 c7 c7 00 c6 1d 8d e8 fe 5d 15 03 e9 1e fc ff ff e8 44 f4 30 00 <0f> 0b 48 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 2e f4 30 00
RSP: 0018:ffffc90000007af8 EFLAGS: 00010046
RAX: ffffffff8159b60c RBX: 00000000000b0012 RCX: ffff88801d7e5940
RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: 0000000000010000 R08: ffffffff815aa2a5 R09: fffffbfff1d416c6
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000008 R15: ffff8880596a7000
FS: 000055556d930500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffddb535ff0 CR3: 00000000732f6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
expire_timers kernel/time/timer.c:1544 [inline]
__run_timers+0x6a8/0x890 kernel/time/timer.c:1820
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
handle_softirqs+0x2ee/0xa40 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0x157/0x240 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:stack_trace_consume_entry+0x0/0x270 kernel/stacktrace.c:83
Code: ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 7b ff ff ff 48 89 df e8 30 af 69 00 e9 6e ff ff ff e8 f6 37 39 09 66 0f 1f 44 00 00 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 18 48 89 fb 48 ba 00 00 00
RSP: 0018:ffffc900035a6f78 EFLAGS: 00000286
RAX: ffffffff896dff39 RBX: ffffc900035a6f80 RCX: ffffffff8fe3e000
RDX: ffffffff8ff99701 RSI: ffffffff896dff39 RDI: ffffc900035a7060
RBP: ffffc900035a7010 R08: ffffc900035a75d8 R09: ffffc900035a6fd0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801d7e5940
R13: ffffffff81785c60 R14: ffffc900035a7060 R15: 0000000000000000
arch_stack_walk+0x101/0x140 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486
call_rcu+0x163/0xa10 kernel/rcu/tree.c:2845
in6_dev_put include/net/addrconf.h:388 [inline]
addrconf_ifdown+0x1911/0x1b80 net/ipv6/addrconf.c:3957
addrconf_notify+0x409/0xf70 net/ipv6/addrconf.c:-1
notifier_call_chain kernel/notifier.c:87 [inline]
raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:455
call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
call_netdevice_notifiers net/core/dev.c:2053 [inline]
unregister_netdevice_many+0xe48/0x1710 net/core/dev.c:10978
unregister_netdevice_queue+0x2e6/0x350 net/core/dev.c:10909
unregister_netdevice include/linux/netdevice.h:3075 [inline]
nsim_destroy+0x44/0x140 drivers/net/netdevsim/netdev.c:382
__nsim_dev_port_del+0x153/0x1b0 drivers/net/netdevsim/dev.c:1433
nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1445 [inline]
nsim_dev_reload_destroy+0x286/0x490 drivers/net/netdevsim/dev.c:1662
nsim_drv_remove+0x5c/0x160 drivers/net/netdevsim/dev.c:1678
device_remove drivers/base/dd.c:548 [inline]
__device_release_driver drivers/base/dd.c:1260 [inline]
device_release_driver_internal+0x4f3/0x880 drivers/base/dd.c:1286
bus_remove_device+0x2e5/0x400 drivers/base/bus.c:531
device_del+0x6e2/0xbd0 drivers/base/core.c:3885
device_unregister+0x1c/0xc0 drivers/base/core.c:3928
nsim_bus_dev_del drivers/net/netdevsim/bus.c:310 [inline]
del_device_store+0x35f/0x480 drivers/net/netdevsim/bus.c:219
kernfs_fop_write_iter+0x3a2/0x4f0 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:2265 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x857/0xbc0 fs/read_write.c:584
ksys_write+0x19c/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f568358bc1f
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007ffda4b8b3e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f568358bc1f
RDX: 0000000000000001 RSI: 00007ffda4b8b430 RDI: 0000000000000005
RBP: 00007f568360f4fd R08: 0000000000000000 R09: 00007ffda4b8b237
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 00007ffda4b8b430 R14: 00007f56842d4620 R15: 0000000000000003
----------------
Code disassembly (best guess), 1 bytes skipped:
0: ff 89 d9 80 e1 07 decl 0x7e180d9(%rcx)
6: 80 c1 03 add $0x3,%cl
9: 38 c1 cmp %al,%cl
b: 0f 8c 7b ff ff ff jl 0xffffff8c
11: 48 89 df mov %rbx,%rdi
14: e8 30 af 69 00 call 0x69af49
19: e9 6e ff ff ff jmp 0xffffff8c
1e: e8 f6 37 39 09 call 0x9393819
23: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
* 29: 55 push %rbp <-- trapping instruction
2a: 41 57 push %r15
2c: 41 56 push %r14
2e: 41 55 push %r13
30: 41 54 push %r12
32: 53 push %rbx
33: 48 83 ec 18 sub $0x18,%rsp
37: 48 89 fb mov %rdi,%rbx
3a: 48 rex.W
3b: ba .byte 0xba
3c: 00 00 add %al,(%rax)