watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.3:14052] Modules linked in: irq event stamp: 2285017 hardirqs last enabled at (2285016): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2285017): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2272546): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2272573): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 14052 Comm: syz-executor.3 Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kcov_remote_stop+0x263/0x490 Code: e4 75 1d 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f e9 d1 da 34 03 e8 7c f3 07 00 e9 ff fd ff ff e8 c2 f1 07 00 fb 48 83 c4 18 <5b> 5d 41 5c 41 5d 41 5e 41 5f e9 ae da 34 03 41 80 7d 60 00 0f 84 RSP: 0018:ffff88806cf09c78 EFLAGS: 00000286 RAX: 000000000022dda8 RBX: ffff8880154cd280 RCX: 1ffffffff0fdfeb6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81520e5e RBP: ffff88806cf2da88 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: ffffffff81520c67 R12: 0000000000000200 R13: 0000000000000000 R14: ffff8880166b28a8 R15: ffff88803f820c40 FS: 00007f52edf65700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc3561e53a4 CR3: 000000003a4ac000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: ieee80211_rx_list+0x63d/0x2840 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 tasklet_action_common+0x235/0x3b0 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 14 9a ab ff 4d 85 ed 74 06 e8 8a 62 d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff888033667490 EFLAGS: 00000246 RAX: 000000000022ad3b RBX: ffffea00003a56c0 RCX: 1ffffffff0fdfeb6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81849d96 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 0000000000000000 R12: ffff88806cf40350 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88800e95b250 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_noprof+0x300/0x3d0 __proc_create+0x2b7/0x8d0 _proc_mkdir+0xb2/0x200 netfilter_net_init+0x215/0x300 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e90 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f52f09efb19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f52edf65188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f52f0b02f60 RCX: 00007f52f09efb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f52f0a49f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdca80556f R14: 00007f52edf65300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 16 Comm: rcu_preempt Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:hlock_class+0x56/0x130 Code: 20 66 81 e3 ff 1f 0f b7 db be 08 00 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 60 ef ee 87 e8 e2 c3 5c 00 48 0f a3 1d ba ba bf 06 <73> 16 48 8d 04 9b 48 8d 04 80 48 8d 04 c5 80 f3 ee 87 5b e9 62 b4 RSP: 0018:ffff88800960f5e0 EFLAGS: 00000047 RAX: 0000000000000001 RBX: 0000000000000065 RCX: ffffffff812f349e RDX: fffffbfff0fdddee RSI: 0000000000000008 RDI: ffffffff87eeef68 RBP: ffff8880095e5280 R08: 0000000000000000 R09: fffffbfff0fddded R10: ffffffff87eeef6f R11: 0000000000000000 R12: 0000000000000008 R13: ffff8880095e5ce8 R14: 0000000000000100 R15: ffff8880095e5ce8 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056250b27e838 CR3: 000000000d172000 CR4: 0000000000350ef0 Call Trace: mark_lock+0xac/0x1370 __lock_acquire+0x9e1/0x4430 lock_acquire.part.0+0xeb/0x320 _raw_spin_lock_irqsave+0x3a/0x60 hrtimer_try_to_cancel.part.0+0x6e/0x250 hrtimer_try_to_cancel+0x37/0x50 dl_server_stop+0x49/0x90 dequeue_entities+0x12b3/0x1b90 dequeue_task_fair+0x16d/0x450 __schedule+0x4db/0x2fa0 schedule+0xdb/0x340 schedule_timeout+0x11b/0x270 rcu_gp_fqs_loop+0x1c4/0xf10 rcu_gp_kthread+0x4b7/0x6b0 kthread+0x2c2/0x3a0 ret_from_fork+0x48/0x80 ret_from_fork_asm+0x1a/0x30 Bluetooth: hci1: command 0x0406 tx timeout ---------------- Code disassembly (best guess): 0: e4 75 in $0x75,%al 2: 1d 48 83 c4 18 sbb $0x18c48348,%eax 7: 5b pop %rbx 8: 5d pop %rbp 9: 41 5c pop %r12 b: 41 5d pop %r13 d: 41 5e pop %r14 f: 41 5f pop %r15 11: e9 d1 da 34 03 jmpq 0x334dae7 16: e8 7c f3 07 00 callq 0x7f397 1b: e9 ff fd ff ff jmpq 0xfffffe1f 20: e8 c2 f1 07 00 callq 0x7f1e7 25: fb sti 26: 48 83 c4 18 add $0x18,%rsp * 2a: 5b pop %rbx <-- trapping instruction 2b: 5d pop %rbp 2c: 41 5c pop %r12 2e: 41 5d pop %r13 30: 41 5e pop %r14 32: 41 5f pop %r15 34: e9 ae da 34 03 jmpq 0x334dae7 39: 41 80 7d 60 00 cmpb $0x0,0x60(%r13) 3e: 0f .byte 0xf 3f: 84 .byte 0x84