Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci7: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.1:5553] Modules linked in: irq event stamp: 9060575 hardirqs last enabled at (9060574): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (9060575): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (9033542): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (9033545): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 5553 Comm: syz-executor.1 Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:slab_post_alloc_hook mm/slab.h:534 [inline] RIP: 0010:slab_alloc_node mm/slub.c:2896 [inline] RIP: 0010:slab_alloc mm/slub.c:2904 [inline] RIP: 0010:kmem_cache_alloc+0x13b/0x310 mm/slub.c:2909 Code: 0f 1f 44 00 00 41 f7 c6 00 01 00 00 0f 85 04 01 00 00 44 8b 25 66 2b fb 03 4c 89 fe 48 89 ef 45 21 f4 44 89 e2 e8 c5 37 00 00 <8b> 75 1c 48 89 44 24 08 48 89 c7 f6 45 0a 80 75 0d 44 89 e1 ba 01 RSP: 0018:ffff88806ce09a18 EFLAGS: 00000292 RAX: ffff88803d118bd0 RBX: ffff88803d118d80 RCX: 0000000000000000 RDX: 000000004ae2a562 RSI: ffffffff842001b8 RDI: 0000000000000000 RBP: ffff88800804d640 R08: 0000000095f691ac R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000092a20 R13: 0000000000000000 R14: 0000000000092a20 R15: ffff88803d118bd0 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1165cb6098 CR3: 000000000e762000 CR4: 0000000000350ef0 Call Trace: mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] __kmalloc_node_track_caller+0x1a6/0x3b0 mm/slub.c:4496 __kmalloc_reserve net/core/skbuff.c:143 [inline] __alloc_skb+0xb1/0x5b0 net/core/skbuff.c:211 __netdev_alloc_skb+0x6e/0x360 net/core/skbuff.c:447 netdev_alloc_skb include/linux/skbuff.h:2857 [inline] dev_alloc_skb include/linux/skbuff.h:2870 [inline] __ieee80211_beacon_get+0x3af/0x1440 net/mac80211/tx.c:4876 ieee80211_beacon_get_tim+0x88/0x9f0 net/mac80211/tx.c:4990 ieee80211_beacon_get include/net/mac80211.h:4912 [inline] mac80211_hwsim_beacon_tx+0x111/0x940 drivers/net/wireless/mac80211_hwsim.c:1740 __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:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x4/0x20 kernel/kcov.c:284 Code: 84 00 00 00 00 00 48 8b 0c 24 0f b7 d6 0f b7 f7 bf 03 00 00 00 e9 cc fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 ae fe ff ff 66 66 2e 0f 1f 84 00 00 RSP: 0018:ffff88800db9f628 EFLAGS: 00000246 RAX: 0000000000000007 RBX: 0000000000000002 RCX: ffffffff8156cde3 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: 00000000000001ef R08: 0000000000000000 R09: ffffea0000b8eb37 R10: fffff94000171d66 R11: 0000000000000001 R12: ffffea0000b8eb34 R13: dffffc0000000000 R14: ffff88803bd07f90 R15: ffffea0000b8eb00 put_page_testzero include/linux/mm.h:707 [inline] release_pages+0x143/0xc20 mm/swap.c:914 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:3235 __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:2759 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: 0033:0x7f4f00896b19 Code: Unable to access opcode bytes at RIP 0x7f4f00896aef. RSP: 002b:00007f4efde0c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 000000000000000b RBX: 00007f4f009a9f60 RCX: 00007f4f00896b19 RDX: 000000000000003a RSI: 0000000000000003 RDI: 000000000000000a RBP: 00007f4f008f0f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffced05f2ef R14: 00007f4efde0c300 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: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 5: 41 f7 c6 00 01 00 00 test $0x100,%r14d c: 0f 85 04 01 00 00 jne 0x116 12: 44 8b 25 66 2b fb 03 mov 0x3fb2b66(%rip),%r12d # 0x3fb2b7f 19: 4c 89 fe mov %r15,%rsi 1c: 48 89 ef mov %rbp,%rdi 1f: 45 21 f4 and %r14d,%r12d 22: 44 89 e2 mov %r12d,%edx 25: e8 c5 37 00 00 callq 0x37ef * 2a: 8b 75 1c mov 0x1c(%rbp),%esi <-- trapping instruction 2d: 48 89 44 24 08 mov %rax,0x8(%rsp) 32: 48 89 c7 mov %rax,%rdi 35: f6 45 0a 80 testb $0x80,0xa(%rbp) 39: 75 0d jne 0x48 3b: 44 89 e1 mov %r12d,%ecx 3e: ba .byte 0xba 3f: 01 .byte 0x1