Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [syz-executor.7:4376] Modules linked in: irq event stamp: 11916881 hardirqs last enabled at (11916880): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (11916881): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (11870616): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (11870619): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4376 Comm: syz-executor.7 Not tainted 5.10.228 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x4cb/0x1a90 arch/x86/kernel/unwind_orc.c:623 Code: 04 02 84 c0 74 08 3c 03 0f 8e 4d 0f 00 00 41 c7 45 00 00 00 00 00 31 c0 48 ba 00 00 00 00 00 fc ff df 49 c7 04 16 00 00 00 00 <48> 8b 9c 24 98 00 00 00 65 48 2b 1c 25 28 00 00 00 0f 85 15 0f 00 RSP: 0018:ffff88806ce09668 EFLAGS: 00000207 RAX: 0000000000000001 RBX: ffff88806ce09f88 RCX: 1ffff1100d9c1201 RDX: dffffc0000000000 RSI: ffff88806ce09f58 RDI: ffff88806ce09750 RBP: ffff88806ce02000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000032042 R11: 1ffff1100d9c12d5 R12: ffff88806ce09f88 R13: ffff88806ce09740 R14: 1ffff1100d9c12d5 R15: ffffffff859bca40 FS: 00007f0d15d4c700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000280 CR3: 000000004806e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000dd060a Call Trace: arch_stack_walk+0x83/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc9/0xd0 mm/kasan/common.c:461 slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] __kmalloc_node_track_caller+0x189/0x3b0 mm/slub.c:4496 __kmalloc_reserve net/core/skbuff.c:143 [inline] __alloc_skb+0xb1/0x5b0 net/core/skbuff.c:211 skb_copy+0x183/0x350 net/core/skbuff.c:1529 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb1d/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1499 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1716 mac80211_hwsim_beacon_tx+0x494/0x940 drivers/net/wireless/mac80211_hwsim.c:1770 __iterate_interfaces+0x1f0/0x550 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793 __run_hrtimer kernel/time/hrtimer.c:1586 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1650 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1667 __do_softirq+0x1b8/0x7c9 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:767 [inline] RIP: 0010:percpu_ref_put_many.constprop.0+0x45/0x110 include/linux/percpu-refcount.h:324 Code: 00 00 31 f6 48 c7 c7 60 99 ff 84 e8 85 51 bb ff e8 10 32 7a 02 5a 85 c0 75 39 48 8b 45 00 a8 03 0f 85 a8 00 00 00 65 48 ff 08 f6 31 7a 02 85 c0 75 5c 65 ff 0d 5b 6e 96 7e e8 e6 11 c2 ff 48 RSP: 0018:ffff888047fd7a70 EFLAGS: 00000202 RAX: 0000607f92e0ad20 RBX: ffff88801e44c000 RCX: 0000000073eaa6c4 RDX: 0000000000000000 RSI: f2c855b164f20744 RDI: ffff88806ce3c128 RBP: ffff88800c7e5d00 R08: 0000000000000000 R09: ffffffff8686a6e7 R10: 0000000000000246 R11: 0000000000000001 R12: ffff8880083f9280 R13: 0000000000000246 R14: 0000000000000006 R15: 00000000fffffd78 percpu_ref_put include/linux/percpu-refcount.h:338 [inline] obj_cgroup_put include/linux/memcontrol.h:518 [inline] memcg_slab_free_hook mm/slab.h:385 [inline] memcg_slab_free_hook mm/slab.h:351 [inline] do_slab_free mm/slub.c:3105 [inline] ___cache_free+0x1de/0x360 mm/slub.c:3156 qlink_free mm/kasan/quarantine.c:151 [inline] qlist_free_all+0x59/0xe0 mm/kasan/quarantine.c:170 quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:267 __kasan_kmalloc.constprop.0+0xa2/0xd0 mm/kasan/common.c:442 kmalloc include/linux/slab.h:552 [inline] __memcg_init_list_lru_node+0x7f/0x1e0 mm/list_lru.c:339 memcg_init_list_lru_node mm/list_lru.c:362 [inline] memcg_init_list_lru mm/list_lru.c:448 [inline] __list_lru_init+0x44d/0x890 mm/list_lru.c:615 alloc_super+0x8b8/0xa90 fs/super.c:272 sget_fc+0x110/0x860 fs/super.c:544 vfs_get_super fs/super.c:1209 [inline] get_tree_nodev+0x24/0x1d0 fs/super.c:1244 mqueue_get_tree+0xf2/0x130 ipc/mqueue.c:434 vfs_get_tree+0x8e/0x300 fs/super.c:1572 fc_mount+0x13/0xc0 fs/namespace.c:978 mq_create_mount ipc/mqueue.c:484 [inline] mq_init_ns+0x39e/0x530 ipc/mqueue.c:1700 create_ipc_ns ipc/namespace.c:58 [inline] copy_ipcs+0x2f5/0x480 ipc/namespace.c:84 create_new_namespaces+0x210/0xb20 kernel/nsproxy.c:90 unshare_nsproxy_namespaces+0xbd/0x1f0 kernel/nsproxy.c:231 ksys_unshare+0x449/0x8a0 kernel/fork.c:3003 __do_sys_unshare kernel/fork.c:3071 [inline] __se_sys_unshare kernel/fork.c:3069 [inline] __x64_sys_unshare+0x2d/0x40 kernel/fork.c:3069 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f0d187d6b19 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:00007f0d15d4c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f0d188e9f60 RCX: 00007f0d187d6b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000004a060400 RBP: 00007f0d18830f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffd1303bdf R14: 00007f0d15d4c300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 1 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:706 ---------------- Code disassembly (best guess): 0: 04 02 add $0x2,%al 2: 84 c0 test %al,%al 4: 74 08 je 0xe 6: 3c 03 cmp $0x3,%al 8: 0f 8e 4d 0f 00 00 jle 0xf5b e: 41 c7 45 00 00 00 00 movl $0x0,0x0(%r13) 15: 00 16: 31 c0 xor %eax,%eax 18: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 1f: fc ff df 22: 49 c7 04 16 00 00 00 movq $0x0,(%r14,%rdx,1) 29: 00 * 2a: 48 8b 9c 24 98 00 00 mov 0x98(%rsp),%rbx <-- trapping instruction 31: 00 32: 65 48 2b 1c 25 28 00 sub %gs:0x28,%rbx 39: 00 00 3b: 0f .byte 0xf 3c: 85 .byte 0x85 3d: 15 .byte 0x15 3e: 0f .byte 0xf