Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci7: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.2:4330] Modules linked in: irq event stamp: 10237651 hardirqs last enabled at (10237650): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (10237651): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (10232718): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (10232721): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 4330 Comm: syz-executor.2 Not tainted 5.10.230 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x0/0x160 kernel/stacktrace.c:85 Code: 00 e9 4a ff ff ff 0f 1f 40 00 e8 eb 9a 10 00 48 c7 c1 00 48 48 84 31 d2 be 80 01 00 00 48 c7 c7 00 46 48 84 e9 e1 b0 5e 00 cc <48> b8 00 00 00 00 00 fc ff df 55 53 48 89 fb 48 83 c7 10 48 89 fa RSP: 0018:ffff88806cf09730 EFLAGS: 00000286 RAX: ffffffff83c1c488 RBX: ffffffff813023b0 RCX: 1ffff1100d9e1201 RDX: 1ffff1100d9e12f0 RSI: ffffffff83c1c488 RDI: ffff88806cf097f0 RBP: ffff88806cf097c0 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000032042 R11: 1ffff1100d9e12d4 R12: ffff88806cf097f0 R13: 0000000000000000 R14: ffff888048e34ec0 R15: 0000000000000200 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559629a82fa0 CR3: 000000000b94a000 CR4: 0000000000350ee0 Call Trace: arch_stack_walk+0x73/0xf0 arch/x86/kernel/stacktrace.c:27 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 __netdev_alloc_skb+0x6e/0x360 net/core/skbuff.c:447 netdev_alloc_skb include/linux/skbuff.h:2854 [inline] dev_alloc_skb include/linux/skbuff.h:2867 [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:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:207 [inline] RIP: 0010:test_bit include/asm-generic/bitops/instrumented-non-atomic.h:135 [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+0xd6/0x290 mm/swap_state.c:354 Code: 89 04 24 e8 ec f0 d8 ff 48 8b 04 24 48 85 c0 0f 85 60 01 00 00 e8 6a f7 d8 ff be 08 00 00 00 4c 89 ff e8 2d c7 04 00 4c 89 f8 <48> c1 e8 03 42 80 3c 28 00 0f 85 64 01 00 00 4d 8b 3f 31 ff 49 c1 RSP: 0018:ffff8880490b7970 EFLAGS: 00000246 RAX: ffffea0000742440 RBX: ffff888047437340 RCX: ffffffff8167c723 RDX: fffff940000e8489 RSI: 0000000000000008 RDI: ffffea0000742440 RBP: ffffea0000742440 R08: 0000000000000000 R09: ffffea0000742447 R10: fffff940000e8488 R11: 0000000000000001 R12: 0000000000000066 R13: dffffc0000000000 R14: 00000000000001fe R15: ffffea0000742440 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:240 [inline] tlb_flush_mmu mm/mmu_gather.c:247 [inline] tlb_finish_mmu+0x165/0x8f0 mm/mmu_gather.c:326 exit_mmap+0x29f/0x4f0 mm/mmap.c:3237 __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: 0033:0x7fed12b0ab19 Code: Unable to access opcode bytes at RIP 0x7fed12b0aaef. RSP: 002b:00007fed10080188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000006 RBX: 00007fed12c1df60 RCX: 00007fed12b0ab19 RDX: 0000000000000088 RSI: 0000000000000002 RDI: 000000000000000a RBP: 00007fed12b64f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff52e666f R14: 00007fed10080300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline] NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 0 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:706 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e9 4a ff ff ff jmpq 0xffffff4f 5: 0f 1f 40 00 nopl 0x0(%rax) 9: e8 eb 9a 10 00 callq 0x109af9 e: 48 c7 c1 00 48 48 84 mov $0xffffffff84484800,%rcx 15: 31 d2 xor %edx,%edx 17: be 80 01 00 00 mov $0x180,%esi 1c: 48 c7 c7 00 46 48 84 mov $0xffffffff84484600,%rdi 23: e9 e1 b0 5e 00 jmpq 0x5eb109 28: cc int3 * 29: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 30: fc ff df 33: 55 push %rbp 34: 53 push %rbx 35: 48 89 fb mov %rdi,%rbx 38: 48 83 c7 10 add $0x10,%rdi 3c: 48 89 fa mov %rdi,%rdx