Bluetooth: hci0: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.5:6998] Modules linked in: irq event stamp: 7083909 hardirqs last enabled at (7083908): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (7083909): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (7030382): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (7030387): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 6998 Comm: syz-executor.5 Not tainted 6.2.0-rc2-next-20230106 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xa44/0x2130 Code: c1 ea 03 80 3c 02 00 0f 85 a5 16 00 00 4c 89 e2 49 c7 46 68 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 <4c> 89 e2 83 e2 07 38 d0 7f 08 84 c0 0f 85 9c 11 00 00 4c 89 c8 4c RSP: 0018:ffff88806ce097e0 EFLAGS: 00000216 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 1ffff1100d9c1317 RDX: 1ffff1100d9c1314 RSI: ffff88804722f8c0 RDI: ffff88806ce098c8 RBP: ffff88806ce098b8 R08: ffffffff8636f486 R09: ffffffff8636f48a R10: ffff88806ce09ff8 R11: ffff88806ce098a0 R12: ffff88806ce098a1 R13: ffff88806ce098c0 R14: ffff88806ce09860 R15: ffffffff8636f48b FS: 00007f1758cf5700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efd77232718 CR3: 00000000448f6000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 __kasan_record_aux_stack+0x95/0xb0 __call_rcu_common.constprop.0+0x6a/0xa00 __kmem_cache_free+0x8b/0x2f0 skb_release_data+0x6d8/0x810 consume_skb+0xcb/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x32/0x60 Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 e6 bb e7 fc 48 89 ef e8 2e 33 e8 fc 80 e7 02 74 06 e8 84 2e 0c fd fb bf 01 00 00 00 99 80 dd fc 65 8b 05 ba 2e bf 7b 85 c0 74 07 5b 5d e9 6b 29 00 RSP: 0018:ffff88804722f0e0 EFLAGS: 00000206 RAX: 00000000006b4671 RBX: 0000000000000256 RCX: ffffffff812b788f RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff8880084d2900 R08: 0000000000000001 R09: ffffffff8764e90f R10: fffffbfff0ec9d21 R11: 0000000000000001 R12: ffff8880084d2900 R13: ffff88800876c3c0 R14: ffff88800eb20f60 R15: ffff88800eb20f60 __slab_free+0x297/0x380 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x196/0x230 __kasan_slab_alloc+0x4c/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc40 kmem_cache_alloc+0x204/0x300 __kernfs_new_node+0xd4/0x8c0 kernfs_new_node+0x97/0x120 __kernfs_create_file+0x55/0x350 sysfs_add_file_mode_ns+0x21c/0x440 internal_create_group+0x322/0xb20 internal_create_groups.part.0+0x90/0x140 sysfs_create_groups+0x29/0x50 device_add+0x1437/0x1ec0 netdev_register_kobject+0x17e/0x3b0 register_netdevice+0xd60/0x1530 register_netdev+0x31/0x60 loopback_net_init+0x7a/0x170 ops_init+0xbb/0x6c0 setup_net+0x40c/0x9d0 copy_net_ns+0x321/0x770 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x414/0x500 copy_process+0x2a5e/0x7390 kernel_clone+0xeb/0x8c0 __do_sys_clone3+0x1d5/0x2e0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f175b77fb19 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:00007f1758cf5188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f175b892f60 RCX: 00007f175b77fb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f175b7d9f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdef34275f R14: 00007f1758cf5300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: c1 ea 03 shr $0x3,%edx 3: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 7: 0f 85 a5 16 00 00 jne 0x16b2 d: 4c 89 e2 mov %r12,%rdx 10: 49 c7 46 68 00 00 00 movq $0x0,0x68(%r14) 17: 00 18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1f: fc ff df 22: 48 c1 ea 03 shr $0x3,%rdx 26: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax * 2a: 4c 89 e2 mov %r12,%rdx <-- trapping instruction 2d: 83 e2 07 and $0x7,%edx 30: 38 d0 cmp %dl,%al 32: 7f 08 jg 0x3c 34: 84 c0 test %al,%al 36: 0f 85 9c 11 00 00 jne 0x11d8 3c: 4c 89 c8 mov %r9,%rax 3f: 4c rex.WR