Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.0:4074] Modules linked in: irq event stamp: 14953413 hardirqs last enabled at (14953412): [<ffffffff84000e42>] asm_sysvec_irq_work+0x12/0x20 arch/x86/include/asm/idtentry.h:661 hardirqs last disabled at (14953413): [<ffffffff83e657ab>] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (10861028): [<ffffffff84001092>] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (10861265): [<ffffffff84001092>] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4074 Comm: syz-executor.0 Not tainted 5.10.232 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:slab_free_hook mm/slub.c:1542 [inline] RIP: 0010:slab_free_freelist_hook+0x99/0x180 mm/slub.c:1576 Code: a9 00 00 80 00 0f 84 bc 00 00 00 9c 41 5e fa 41 f7 c6 00 02 00 00 0f 85 b8 00 00 00 8b 73 1c 4c 89 ff e8 ca 8f ba ff 41 56 9d <48> 8b 54 24 40 4c 89 fe 48 89 df e8 c7 95 00 00 84 c0 74 8d 48 8b RSP: 0018:ffff88806ce09c10 EFLAGS: 00000286 RAX: 0000000000c751f8 RBX: ffff8880083fda00 RCX: 1ffffffff0d0d912 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff816bfbf8 RBP: 000000000000004c R08: 0000000000000001 R09: ffffffff8686a6e7 R10: fffffbfff0d0d4dc R11: 0000000000000001 R12: ffff88806ce09c60 R13: ffff888020352000 R14: 0000000000000286 R15: ffff888020352000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005621a8925db0 CR3: 000000001942c000 CR4: 0000000000350ef0 Call Trace: <IRQ> slab_free mm/slub.c:3149 [inline] kmem_cache_free+0xa7/0x2d0 mm/slub.c:3165 kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:637 __kfree_skb net/core/skbuff.c:694 [inline] consume_skb net/core/skbuff.c:849 [inline] consume_skb+0x11d/0x2b0 net/core/skbuff.c:843 mac80211_hwsim_tx_frame+0x15a/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1717 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 </IRQ> __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:lock_acquire+0x1b9/0x470 kernel/locking/lockdep.c:5534 Code: 31 db 7e e8 39 91 ff ff b8 ff ff ff ff 48 83 c4 20 65 0f c1 05 58 31 db 7e 83 f8 01 4c 8b 54 24 08 0f 85 48 02 00 00 41 52 9d <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffff8880477af660 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff11008ef5ece RCX: 0000000000000204 RDX: 1ffff110032c27b8 RSI: 0000000000000008 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8686a6e7 R10: 0000000000000246 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888016e39798 R15: 0000000000000000 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x27/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] zap_pte_range mm/memory.c:1245 [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+0x95d/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: 0033:0x7fba9fc62b19 Code: Unable to access opcode bytes at RIP 0x7fba9fc62aef. RSP: 002b:00007fba9d1b7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000005 RBX: 00007fba9fd76020 RCX: 00007fba9fc62b19 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000000000a RBP: 00007fba9fcbcf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffda58c1e6f R14: 00007fba9d1b7300 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 Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci7: command 0x0406 tx timeout ---------------- Code disassembly (best guess): 0: a9 00 00 80 00 test $0x800000,%eax 5: 0f 84 bc 00 00 00 je 0xc7 b: 9c pushfq c: 41 5e pop %r14 e: fa cli f: 41 f7 c6 00 02 00 00 test $0x200,%r14d 16: 0f 85 b8 00 00 00 jne 0xd4 1c: 8b 73 1c mov 0x1c(%rbx),%esi 1f: 4c 89 ff mov %r15,%rdi 22: e8 ca 8f ba ff callq 0xffba8ff1 27: 41 56 push %r14 29: 9d popfq * 2a: 48 8b 54 24 40 mov 0x40(%rsp),%rdx <-- trapping instruction 2f: 4c 89 fe mov %r15,%rsi 32: 48 89 df mov %rbx,%rdi 35: e8 c7 95 00 00 callq 0x9601 3a: 84 c0 test %al,%al 3c: 74 8d je 0xffffffcb 3e: 48 rex.W 3f: 8b .byte 0x8b