Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.7:4233] Modules linked in: irq event stamp: 5374703 hardirqs last enabled at (5374702): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (5374703): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (5363848): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (5363851): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 4233 Comm: syz-executor.7 Not tainted 5.10.236 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:quarantine_put+0x70/0x1a0 mm/kasan/quarantine.c:218 Code: 08 48 89 19 48 89 58 08 48 c7 03 00 00 00 00 48 03 50 10 48 89 50 10 48 89 d3 48 81 fa 00 00 10 00 77 24 4d 85 ed 75 18 55 9d <5b> 5d 41 5c 41 5d 41 5e 41 5f e9 61 75 b3 02 e8 2c 64 da ff eb 99 RSP: 0018:ffff88806cf09bb0 EFLAGS: 00000286 RAX: 00000000005202ea RBX: 00000000000f9c80 RCX: 1ffffffff0aceb61 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff816cca6b RBP: 0000000000000286 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880083ffa00 R13: 0000000000000200 R14: 0000000000000286 R15: ffff88804832b3c0 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f76f48ff998 CR3: 0000000004e26000 CR4: 0000000000350ee0 Call Trace: __kasan_slab_free+0x122/0x160 mm/kasan/common.c:424 slab_free_hook mm/slub.c:1542 [inline] slab_free_freelist_hook+0xa9/0x180 mm/slub.c:1576 slab_free mm/slub.c:3149 [inline] kmem_cache_free+0xa7/0x2d0 mm/slub.c:3165 kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:638 __kfree_skb net/core/skbuff.c:695 [inline] consume_skb net/core/skbuff.c:850 [inline] consume_skb+0x11d/0x2b0 net/core/skbuff.c:844 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: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:free_unref_page_prepare mm/page_alloc.c:3161 [inline] RIP: 0010:free_unref_page_list+0x168/0x680 mm/page_alloc.c:3231 Code: 84 1b 01 00 00 49 89 c7 41 80 3e 00 0f 85 c3 03 00 00 49 89 dc 48 89 df 4c 2b 25 83 65 62 03 49 c1 fc 06 e8 7a a7 ff ff 84 c0 <0f> 84 1e ff ff ff 4c 89 e0 4c 89 e1 48 c1 e8 0f 48 c1 e9 17 e9 be RSP: 0018:ffff88804aac75e0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffea00011c0c00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 00000000000000ff RDI: ffffed1008e06200 RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffed1008e06000 R10: fffff94000238186 R11: 0000000000000001 R12: 0000000000047030 R13: ffff88804aac7698 R14: fffffbfff0991e98 R15: ffffea00012e3fc0 release_pages+0x806/0xc20 mm/swap.c:952 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: 0033:0x7f0ff99dfb19 Code: Unable to access opcode bytes at RIP 0x7f0ff99dfaef. RSP: 002b:00007f0ff6f55188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: 000000000000000a RBX: 00007f0ff9af2f60 RCX: 00007f0ff99dfb19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020001d80 RBP: 00007f0ff9a39f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffc6b43dcf R14: 00007f0ff6f55300 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:711 ---------------- Code disassembly (best guess): 0: 08 48 89 or %cl,-0x77(%rax) 3: 19 48 89 sbb %ecx,-0x77(%rax) 6: 58 pop %rax 7: 08 48 c7 or %cl,-0x39(%rax) a: 03 00 add (%rax),%eax c: 00 00 add %al,(%rax) e: 00 48 03 add %cl,0x3(%rax) 11: 50 push %rax 12: 10 48 89 adc %cl,-0x77(%rax) 15: 50 push %rax 16: 10 48 89 adc %cl,-0x77(%rax) 19: d3 48 81 rorl %cl,-0x7f(%rax) 1c: fa cli 1d: 00 00 add %al,(%rax) 1f: 10 00 adc %al,(%rax) 21: 77 24 ja 0x47 23: 4d 85 ed test %r13,%r13 26: 75 18 jne 0x40 28: 55 push %rbp 29: 9d popfq * 2a: 5b pop %rbx <-- trapping instruction 2b: 5d pop %rbp 2c: 41 5c pop %r12 2e: 41 5d pop %r13 30: 41 5e pop %r14 32: 41 5f pop %r15 34: e9 61 75 b3 02 jmpq 0x2b3759a 39: e8 2c 64 da ff callq 0xffda646a 3e: eb 99 jmp 0xffffffd9