Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout I/O error, dev loop6, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 Bluetooth: hci1: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.7:11540] Modules linked in: irq event stamp: 5372255 hardirqs last enabled at (5372254): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5372255): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (5354960): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (5354963): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 11540 Comm: syz-executor.7 Not tainted 6.2.0-rc2-next-20230106 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_access_ok+0xe1/0x1d0 Code: c1 ea 03 80 3c 02 00 0f 85 e5 00 00 00 48 8b 73 28 48 89 da 48 89 ef e8 ed 00 f6 ff 85 c0 74 13 31 c0 48 83 c4 08 5b 5d 41 5c <41> 5d 41 5e e9 5a cb 31 03 48 b8 00 00 00 00 00 fc ff df 48 8d 7b RSP: 0018:ffff88806ce09708 EFLAGS: 00000296 RAX: ffff888046d28001 RBX: 0000000000000002 RCX: 0000000000000001 RDX: ffff888046d27301 RSI: ffff888046d273c0 RDI: ffff88806ce097b0 RBP: ffff888046d273c0 R08: ffffffff86469662 R09: ffffffff86469666 R10: ffff88806ce09ff8 R11: ffff88806ce097e0 R12: ffff88806ce097e1 R13: ffff888046d20000 R14: ffff88806ce097a0 R15: 0000000000000007 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005642a1d05648 CR3: 00000000228b2000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0x14e5/0x2130 arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x5c/0x70 kmem_cache_alloc_node+0x187/0x310 __alloc_skb+0x21a/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3d9/0x13c0 ieee80211_beacon_get_tim+0x99/0x540 mac80211_hwsim_beacon_tx+0x1d2/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:debug_check_no_locks_freed+0xf8/0x1c0 Code: 28 49 39 d4 73 33 49 8d 14 34 48 39 d0 48 89 14 24 73 26 e8 6a 93 e5 00 85 c0 75 31 41 f7 c6 00 02 00 00 74 01 fb 48 83 c4 10 <5b> 5d 41 5c 41 5d 41 5e 41 5f e9 1d 2e 19 03 48 83 c3 28 48 39 cb RSP: 0018:ffff888046d27488 EFLAGS: 00000286 RAX: ffff88800845b618 RBX: ffff888018c72458 RCX: ffff888018c72458 RDX: ffff88800845b640 RSI: 0000000000001000 RDI: ffff888018c72418 RBP: ffff888018c72420 R08: 0000000000000000 R09: ffffea0000cc75f7 R10: fffff94000198ebe R11: 0000000000000001 R12: ffff8880331d7000 R13: ffff888018c71ac0 R14: 0000000000000202 R15: dffffc0000000000 free_pcp_prepare+0x292/0x910 free_unref_page_list+0x15d/0x990 release_pages+0x9d0/0x1040 tlb_batch_pages_flush+0xa8/0x1b0 unmap_page_range+0x164b/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x6a0 mmput+0xd5/0x390 do_exit+0x99b/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f78fba50b19 Code: Unable to access opcode bytes at 0x7f78fba50aef. RSP: 002b:00007f78f8fc6108 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 RAX: 0000000000000006 RBX: 00007f78fbb63f60 RCX: 00007f78fba50b19 RDX: 0000000020ff9000 RSI: 0000000020000540 RDI: 0000000000000a7b RBP: 0000000020000540 R08: 0000000020000600 R09: 0000000020000600 R10: 00000000200005c0 R11: 0000000000000202 R12: 0000000020000600 R13: 0000000020ff9000 R14: 00000000200005c0 R15: 0000000020ffd000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 11525 Comm: syz-executor.2 Not tainted 6.2.0-rc2-next-20230106 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__lock_acquire+0x886/0x5e70 Code: 0f 8e 49 47 00 00 41 8b 84 24 40 09 00 00 85 c0 74 18 ba 06 00 00 00 4c 89 ee 4c 89 e7 e8 f2 c2 ff ff 85 c0 0f 84 85 05 00 00 08 00 00 00 4c 89 ee 4c 89 e7 e8 da c2 ff ff 85 c0 0f 84 6d 05 RSP: 0018:ffff88806cf09028 EFLAGS: 00000046 RAX: 0000000000000001 RBX: ffff888018daa498 RCX: 0000000000000001 RDX: 0000000000000060 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000002 R08: 0000000000000000 R09: dffffc0000000000 R10: fffffbfff0ec9d20 R11: 0000000000000001 R12: ffff888018da9ac0 R13: ffff888018daa4c0 R14: 0000000000000004 R15: 0000000000000004 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555891c58 CR3: 000000000c522000 CR4: 0000000000350ee0 Call Trace: lock_acquire.part.0+0x11e/0x340 perf_event_output_forward+0xa9/0x2c0 __perf_event_overflow+0x3ed/0x760 perf_swevent_hrtimer+0x361/0x3d0 __hrtimer_run_queues+0x17f/0xcb0 hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x510 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:core_kernel_text+0x82/0xa0 Code: dd b1 04 01 76 0b 44 89 e0 5b 41 5c e9 6b c7 25 03 48 81 fb 00 80 5b 86 72 ec 48 81 fb ec ad 6b 86 73 e3 41 bc 01 00 00 00 5b <44> 89 e0 41 5c e9 48 c7 25 03 48 c7 c7 04 9a d0 85 e8 e8 cd 5e 00 RSP: 0018:ffff88806cf09858 EFLAGS: 00000287 RAX: dffffc0000000000 RBX: ffffffff82feaa55 RCX: 0000000000000000 RDX: 1ffff1100d9e1320 RSI: ffff88806cf09de0 RDI: ffffffff82feaa55 RBP: ffffffff82feaa55 R08: ffffffff864326ba R09: ffffffff864326be R10: ffffed100d9e1322 R11: ffff88806cf098e8 R12: 0000000000000001 R13: 0000000000000000 R14: ffff888018da9ac0 R15: ffff88800e1a6130 kernel_text_address+0x11/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b4/0xc40 kmem_cache_alloc_node+0x215/0x310 __alloc_skb+0x21a/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3d9/0x13c0 ieee80211_beacon_get_tim+0x99/0x540 mac80211_hwsim_beacon_tx+0x1d2/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x70 Code: 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 8b 05 fd 16 ba 7e 89 c1 48 8b 34 24 <81> e1 00 01 00 00 65 48 8b 14 25 80 89 03 00 a9 00 01 ff 00 74 0e RSP: 0018:ffff888046c7f6f8 EFLAGS: 00000293 RAX: 0000000080000001 RBX: ffffea0000ec0480 RCX: 0000000080000001 RDX: ffff888018da9ac0 RSI: ffffffff816d9394 RDI: 0000000000000007 RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801ffaa138 R13: ffffea0000ec0480 R14: 0000000000000000 R15: ffff888046c7fad8 unmap_page_range+0x1a14/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x6a0 mmput+0xd5/0x390 do_exit+0x99b/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fd0f362fc27 Code: Unable to access opcode bytes at 0x7fd0f362fbfd. RSP: 002b:00007fd0f0ba5fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd0f362fc27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000100 RBP: 00007fd0f0ba6040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020000100 R14: 00007fd0f0ba6000 R15: 0000000000000000 Bluetooth: hci0: command 0x0406 tx timeout ---------------- Code disassembly (best guess): 0: c1 ea 03 shr $0x3,%edx 3: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 7: 0f 85 e5 00 00 00 jne 0xf2 d: 48 8b 73 28 mov 0x28(%rbx),%rsi 11: 48 89 da mov %rbx,%rdx 14: 48 89 ef mov %rbp,%rdi 17: e8 ed 00 f6 ff callq 0xfff60109 1c: 85 c0 test %eax,%eax 1e: 74 13 je 0x33 20: 31 c0 xor %eax,%eax 22: 48 83 c4 08 add $0x8,%rsp 26: 5b pop %rbx 27: 5d pop %rbp 28: 41 5c pop %r12 * 2a: 41 5d pop %r13 <-- trapping instruction 2c: 41 5e pop %r14 2e: e9 5a cb 31 03 jmpq 0x331cb8d 33: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 3a: fc ff df 3d: 48 rex.W 3e: 8d .byte 0x8d 3f: 7b .byte 0x7b