Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci7: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.3:4247] Modules linked in: irq event stamp: 8563049 hardirqs last enabled at (8563048): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (8563049): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (8546080): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (8546083): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4247 Comm: syz-executor.3 Not tainted 5.10.237 #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:ffff88806ce09670 EFLAGS: 00000203 RAX: 0000000000000001 RBX: ffff8880174dfd70 RCX: 1ffff1100d9c1201 RDX: dffffc0000000000 RSI: ffff8880174dfd40 RDI: ffff88806ce09758 RBP: ffff8880174d8000 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000032042 R11: 1ffff1100d9c12d6 R12: ffff8880174dfd70 R13: ffff88806ce09748 R14: 1ffff1100d9c12d6 R15: ffffffff8598ff38 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4dfee93d80 CR3: 0000000017704000 CR4: 0000000000350ef0 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] kmem_cache_alloc_node+0x14b/0x330 mm/slub.c:2932 __alloc_skb+0x6d/0x5b0 net/core/skbuff.c:200 skb_copy+0x183/0x350 net/core/skbuff.c:1530 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb50/0x1410 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:1588 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1652 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1669 __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:compound_head include/linux/page-flags.h:187 [inline] RIP: 0010:PageSwapBacked include/linux/page-flags.h:357 [inline] RIP: 0010:PageSwapCache include/linux/page-flags.h:402 [inline] RIP: 0010:free_swap_cache mm/swap_state.c:326 [inline] RIP: 0010:free_pages_and_swap_cache+0x9b/0x290 mm/swap_state.c:354 Code: 42 80 3c 28 00 0f 85 e9 01 00 00 48 8b 2b 48 8d 45 08 48 89 44 24 10 48 c1 e8 03 42 80 3c 28 00 0f 85 bf 01 00 00 48 8b 45 08 <31> ff 49 89 ef 48 89 44 24 08 83 e0 01 48 89 c6 48 89 04 24 e8 fc RSP: 0018:ffff8880174df6b8 EFLAGS: 00000246 RAX: dead000000000100 RBX: ffff88801807d638 RCX: ffffffff8167d4fc RDX: ffff888046d80000 RSI: ffffffff8167d50a RDI: 0000000000000004 RBP: ffffea0001105b40 R08: 0000000000000000 R09: ffffea0001105b07 R10: 00000000000001fe R11: 0000000000000001 R12: 00000000000000c5 R13: dffffc0000000000 R14: 00000000000001fe R15: 0000000000000000 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:240 [inline] tlb_flush_mmu+0xe9/0x6e0 mm/mmu_gather.c:247 zap_pte_range mm/memory.c:1355 [inline] zap_pmd_range mm/memory.c:1404 [inline] zap_pud_range mm/memory.c:1433 [inline] zap_p4d_range mm/memory.c:1454 [inline] unmap_page_range+0x17d9/0x1fe0 mm/memory.c:1475 unmap_single_vma+0x198/0x300 mm/memory.c:1520 unmap_vmas+0x16d/0x300 mm/memory.c:1552 exit_mmap+0x27f/0x4f0 mm/mmap.c:3253 __mmput kernel/fork.c:1101 [inline] mmput+0xca/0x340 kernel/fork.c:1122 exit_mm kernel/exit.c:536 [inline] do_exit+0xa96/0x2600 kernel/exit.c:847 do_group_exit+0x125/0x310 kernel/exit.c:982 get_signal+0x4bc/0x2350 kernel/signal.c:2762 arch_do_signal_or_restart+0x2b7/0x1990 arch/x86/kernel/signal.c:805 handle_signal_work kernel/entry/common.c:145 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x10f/0x190 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x38/0x1d0 kernel/entry/common.c:274 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f7013e73a04 Code: Unable to access opcode bytes at RIP 0x7f7013e739da. RSP: 002b:00007f70114360b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: 0000000000000005 RBX: 00007f7013fd3f60 RCX: 00007f7013e73a04 RDX: 0000000000000000 RSI: 00007f7013f19f82 RDI: 00000000ffffff9c RBP: 00007f7013f19f82 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007ffed81ed03f R14: 00007f7011436300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.237 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:19 [inline] RIP: 0010:virt_spin_lock arch/x86/include/asm/qspinlock.h:100 [inline] RIP: 0010:queued_spin_lock_slowpath+0x122/0x8c0 kernel/locking/qspinlock.c:326 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 09 07 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 b0 93 f8 02 f3 90 73 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e1 00 00 RSP: 0018:ffff88806cf09a38 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffffff87a08080 RCX: ffffffff8127ab97 RDX: fffffbfff0f41011 RSI: 0000000000000004 RDI: ffffffff87a08080 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff87a08083 R10: fffffbfff0f41010 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0f41010 R14: 0000000000000001 R15: 1ffff1100d9e1348 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbda6541420 CR3: 0000000017704000 CR4: 0000000000350ee0 Call Trace: queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x1dc/0x260 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:354 [inline] mac80211_hwsim_tx_frame_no_nl.isra.0+0x6c8/0x1410 drivers/net/wireless/mac80211_hwsim.c:1450 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:1588 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1652 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1669 __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:default_idle+0xe/0x20 arch/x86/kernel/process.c:712 Code: 4e ff ff ff 4c 89 e7 e8 40 af 83 fd eb 8f 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 e9 07 00 00 00 0f 00 2d 24 2c 59 00 fb f4 1d 2c 37 00 cc cc cc cc cc cc cc cc cc cc cc cc cc 41 55 41 54 RSP: 0018:ffff888008987e70 EFLAGS: 00000206 RAX: ffffffff83e91390 RBX: 0000000000000001 RCX: ffffffff83e78f2c RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e91998 RBP: 0000000000000001 R08: 0000000000000001 R09: ffff88806cf3c12b R10: ffffed100d9e7825 R11: 0000000000000001 R12: 0000000000000001 R13: ffffffff85678748 R14: 0000000000000000 R15: dffffc0000000000 default_idle_call+0xbf/0x2c0 kernel/sched/idle.c:112 cpuidle_idle_call kernel/sched/idle.c:194 [inline] do_idle+0x3b3/0x520 kernel/sched/idle.c:306 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:402 secondary_startup_64_no_verify+0xbe/0xcb ---------------- 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