Bluetooth: hci4: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [syz-executor.0:7538] Modules linked in: irq event stamp: 6673399 hardirqs last enabled at (6673398): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (6673399): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (6642234): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (6642237): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 7538 Comm: syz-executor.0 Not tainted 6.2.0-rc1-next-20221226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:___slab_alloc+0x2ba/0x1080 Code: 0a 00 00 49 c7 47 28 00 00 00 00 48 c7 c6 c3 6a 7c 81 4c 89 ff e8 56 6e af ff 4d 85 ed 74 06 e8 5c 86 d3 ff fb 48 8b 44 24 38 97 fd ff ff 48 8b 45 00 48 8d 78 20 49 89 ff e8 d1 43 c2 02 be RSP: 0018:ffff88806ce09900 EFLAGS: 00000202 RAX: ffffea00005be240 RBX: ffff88806ce3d880 RCX: ffffffff812b3b2f RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000000 RBP: ffff88800844f780 R08: 0000000000000001 R09: ffffffff8763290f R10: fffffbfff0ec6521 R11: 0000000000000001 R12: 00000000ffffffff R13: 0000000000000200 R14: ffff888034ea1ac0 R15: ffff88806ce3d8a0 FS: 00007f6277779700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556f2fc58 CR3: 0000000039424000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __slab_alloc.constprop.0+0x4d/0x90 kmem_cache_alloc+0x356/0x410 __create_object+0x3d/0xc40 kmem_cache_alloc_node+0x283/0x420 __alloc_skb+0x21a/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xc70 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __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:put_cpu_partial+0x115/0x1c0 Code: 39 43 28 75 61 48 c7 43 28 00 00 00 00 48 c7 c6 30 5f 7c 81 48 89 df e8 e9 79 af ff 48 85 ed 74 06 e8 ef 91 d3 ff fb 4d 85 ed <74> 21 5b 4c 89 ee 5d 4c 89 e7 41 5c 41 5d 41 5e 41 5f e9 54 fa ff RSP: 0018:ffff888049907138 EFLAGS: 00000286 RAX: 0000000000522575 RBX: ffff88806ce3cb30 RCX: ffffffff812b3b2f RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000200 R08: 0000000000000001 R09: ffffffff876328cf R10: fffffbfff0ec6519 R11: 0000000000000001 R12: ffff888008441dc0 R13: ffffea0001014000 R14: ffffea0000f8e600 R15: 0000000000000001 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x196/0x230 __kasan_slab_alloc+0x4c/0x70 kmem_cache_alloc+0x1e1/0x410 __create_object+0x3d/0xc40 kmem_cache_alloc+0x273/0x410 __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 sit_init_net+0x358/0xa00 ops_init+0xbb/0x680 setup_net+0x40c/0x9d0 copy_net_ns+0x31c/0x760 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x3b7/0x4a0 copy_process+0x29e3/0x7160 kernel_clone+0xeb/0x8a0 __do_sys_clone3+0x1d5/0x2e0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f627a203b19 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:00007f6277779188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f627a316f60 RCX: 00007f627a203b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f627a25df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd60f91fdf R14: 00007f6277779300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.2.0-rc1-next-20221226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc80 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 cd 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 de 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e5 00 00 RSP: 0018:ffff88806cf09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8440b92b RDX: fffffbfff0b48571 RSI: 0000000000000004 RDI: ffffffff85a42b80 RBP: ffffffff85a42b80 R08: 0000000000000000 R09: ffffffff85a42b83 R10: fffffbfff0b48570 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b48570 R14: 0000000000000001 R15: 1ffff1100d9e1346 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a981d6c648 CR3: 000000000e4f6000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xc70 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __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:default_idle+0xf/0x20 Code: 70 01 fe cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 43 e9 41 00 fb f4 80 44 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffff888008df7e58 EFLAGS: 00000202 RAX: ffffffff844094f0 RBX: ffff888008d85040 RCX: ffffffff843ea842 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff88806cf34f03 R10: ffffed100d9e69e0 R11: 0000000000000001 R12: ffffed10011b0a08 R13: ffffffff85d09410 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0x88/0xd0 do_idle+0x3bd/0x530 cpu_startup_entry+0x18/0x20 start_secondary+0x1cc/0x220 secondary_startup_64_no_verify+0xe0/0xeb ---------------- Code disassembly (best guess): 0: 0a 00 or (%rax),%al 2: 00 49 c7 add %cl,-0x39(%rcx) 5: 47 28 00 rex.RXB sub %r8b,(%r8) 8: 00 00 add %al,(%rax) a: 00 48 c7 add %cl,-0x39(%rax) d: c6 c3 6a mov $0x6a,%bl 10: 7c 81 jl 0xffffff93 12: 4c 89 ff mov %r15,%rdi 15: e8 56 6e af ff callq 0xffaf6e70 1a: 4d 85 ed test %r13,%r13 1d: 74 06 je 0x25 1f: e8 5c 86 d3 ff callq 0xffd38680 24: fb sti 25: 48 8b 44 24 38 mov 0x38(%rsp),%rax * 2a: e9 97 fd ff ff jmpq 0xfffffdc6 <-- trapping instruction 2f: 48 8b 45 00 mov 0x0(%rbp),%rax 33: 48 8d 78 20 lea 0x20(%rax),%rdi 37: 49 89 ff mov %rdi,%r15 3a: e8 d1 43 c2 02 callq 0x2c24410 3f: be .byte 0xbe