------------[ cut here ]------------ jump label: negative count! WARNING: CPU: 1 PID: 9 at kernel/jump_label.c:263 static_key_slow_try_dec+0xca/0xe0 kernel/jump_label.c:263 Modules linked in: CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 6.2.0-rc7-syzkaller-01554-gde4287336794 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Workqueue: netns cleanup_net RIP: 0010:static_key_slow_try_dec+0xca/0xe0 kernel/jump_label.c:263 Code: 5d c3 e8 89 c0 d6 ff 45 31 ed 5b 44 89 e8 5d 41 5c 41 5d c3 44 89 e5 eb 8e e8 72 c0 d6 ff 48 c7 c7 40 46 56 8a e8 40 d4 19 08 <0f> 0b eb c5 48 89 df e8 da 1f 25 00 e9 6a ff ff ff 0f 1f 44 00 00 RSP: 0018:ffffc900000e7958 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffffffff91fa4360 RCX: 0000000000000000 RDX: ffff88813fe08000 RSI: ffffffff8166195c RDI: fffff5200001cf1d RBP: 00000000ffffffff R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 00000000ffffffff R13: ffff888029b6f801 R14: ffffed1007b5a488 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557d520ab0d8 CR3: 000000002b7cf000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __static_key_slow_dec_cpuslocked kernel/jump_label.c:271 [inline] __static_key_slow_dec kernel/jump_label.c:283 [inline] static_key_slow_dec+0x60/0xc0 kernel/jump_label.c:298 qdisc_destroy+0xc4/0x570 net/sched/sch_generic.c:1063 qdisc_put+0xd1/0xf0 net/sched/sch_generic.c:1082 shutdown_scheduler_queue net/sched/sch_generic.c:1135 [inline] dev_shutdown+0x269/0x520 net/sched/sch_generic.c:1469 unregister_netdevice_many_notify+0x8d0/0x19e0 net/core/dev.c:10838 unregister_netdevice_many net/core/dev.c:10904 [inline] default_device_exit_batch+0x451/0x590 net/core/dev.c:11357 ops_exit_list+0x125/0x170 net/core/net_namespace.c:174 cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:606 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308