Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci7: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.0:5807] Modules linked in: irq event stamp: 4900599 hardirqs last enabled at (4900598): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4900599): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4889188): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4889191): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 5807 Comm: syz-executor.0 Not tainted 6.1.0-rc7-next-20221205 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x348/0x2130 Code: 8e c7 15 00 00 41 c6 46 40 01 49 c7 c0 40 4e 4c 85 48 b8 00 00 00 00 00 fc ff df 4d 8d 48 04 4c 89 ca 48 c1 ea 03 0f b6 04 02 <4c> 89 ca 83 e2 07 38 d0 7f 08 84 c0 0f 85 e4 14 00 00 41 0f b6 40 RSP: 0018:ffff88806ce08700 EFLAGS: 00000217 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff834ca747 RDX: 1ffffffff0c6b6a6 RSI: ffffffff8635b530 RDI: ffffffff85f5d2b0 RBP: ffff88806ce087d8 R08: ffffffff8635b530 R09: ffffffff8635b534 R10: ffffed100d9c10fd R11: 0000000000038001 R12: ffff88806ce087c1 R13: ffff88806ce087e0 R14: ffff88806ce08780 R15: ffffffff834ca747 FS: 00007f071bfc1700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555591fc58 CR3: 00000000217d8000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2e/0x50 __kasan_slab_free+0x10a/0x190 kmem_cache_free+0xfb/0x610 kfree_skbmem+0xef/0x1b0 consume_skb+0xd8/0x170 packet_rcv+0xf0/0x1590 dev_queue_xmit_nit+0x808/0xb10 dev_hard_start_xmit+0xa7/0x810 sch_direct_xmit+0x263/0x7b0 __dev_queue_xmit+0x149a/0x37c0 ip_finish_output2+0x137c/0x1fb0 __ip_finish_output.part.0+0x560/0xd10 ip_output+0x2ec/0x8e0 ip_local_out+0x357/0x4c0 __ip_queue_xmit+0x852/0x1a50 __tcp_transmit_skb+0x2a2a/0x3520 __tcp_send_ack.part.0+0x3b1/0x620 tcp_send_ack+0x81/0xa0 __tcp_ack_snd_check+0x156/0x9d0 tcp_rcv_established+0x91e/0x2110 tcp_v4_do_rcv+0x690/0x9c0 tcp_v4_rcv+0x31a6/0x3870 ip_protocol_deliver_rcu+0xbe/0x800 ip_local_deliver_finish+0x2e0/0x4c0 ip_local_deliver+0x1b2/0x200 ip_sublist_rcv_finish+0x274/0x570 ip_sublist_rcv+0x3fd/0x800 ip_list_rcv+0x2a2/0x3a0 __netif_receive_skb_list_core+0x695/0x8d0 netif_receive_skb_list_internal+0x6d0/0xca0 napi_complete_done+0x242/0x850 e1000_clean+0x9b8/0x1c60 __napi_poll+0xb9/0x690 net_rx_action+0x9b4/0xd10 __do_softirq+0x1c7/0x8f9 __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:lock_acquire+0x1df/0x530 Code: 03 b8 ff ff ff ff 65 0f c1 05 15 65 d6 7e 83 f8 01 0f 85 c8 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffff88804632f440 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff11008c65e8a RCX: 000000000000684a RDX: 1ffff11008c7412b RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8762d8d7 R10: fffffbfff0ec5b1a R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: ffffffff856c67e0 R15: 0000000000000000 fs_reclaim_acquire+0xda/0x170 prepare_alloc_pages+0x15b/0x500 __alloc_pages+0x149/0x500 alloc_pages+0x1a0/0x260 pte_alloc_one+0x1a/0x200 __pte_alloc+0x6d/0x210 copy_page_range+0x1c1b/0x4400 dup_mmap+0xa4a/0x10b0 copy_process+0x6b69/0x7220 kernel_clone+0xeb/0x950 __do_sys_fork+0x80/0xc0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f071ea4bb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f071bfc1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000039 RAX: ffffffffffffffda RBX: 00007f071eb5ef60 RCX: 00007f071ea4bb19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f071eaa5f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff124385bf R14: 00007f071bfc1300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 231 Comm: sshd Not tainted 6.1.0-rc7-next-20221205 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc80 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 cd 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 ce 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e5 00 00 RSP: 0018:ffff888010af7908 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff844179bb RDX: ffffed10031a7314 RSI: 0000000000000004 RDI: ffff888018d39898 RBP: ffff888018d39898 R08: 0000000000000000 R09: ffff888018d3989b R10: ffffed10031a7313 R11: 0000000000000001 R12: 0000000000000003 R13: ffffed10031a7313 R14: 0000000000000001 R15: 1ffff1100215ef22 FS: 00007f3b7f50b900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5b4680c990 CR3: 000000001c2b2000 CR4: 0000000000350ee0 Call Trace: do_raw_spin_lock+0x1e0/0x270 lock_sock_nested+0x5f/0xf0 tcp_recvmsg+0xf8/0x640 inet_recvmsg+0x12b/0x650 sock_recvmsg+0x12f/0x190 sock_read_iter+0x2c1/0x3b0 vfs_read+0x88c/0x9f0 ksys_read+0x1f4/0x260 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f3b7f9ede8e Code: c0 e9 b6 fe ff ff 50 48 8d 3d 6e 18 0a 00 e8 b9 e7 01 00 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28 RSP: 002b:00007ffcf8458518 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007ffcf845c5af RCX: 00007f3b7f9ede8e RDX: 0000000000004000 RSI: 00007ffcf8458520 RDI: 0000000000000004 RBP: 0000000000000004 R08: 00000000000000e8 R09: 00007ffcf8484080 R10: 00007ffcf84840f0 R11: 0000000000000246 R12: 000056265d8c1ec0 R13: 00007ffcf8458520 R14: 0000000000000004 R15: 000056265bff5a80 ---------------- Code disassembly (best guess), 3 bytes skipped: 0: 00 00 add %al,(%rax) 2: 41 c6 46 40 01 movb $0x1,0x40(%r14) 7: 49 c7 c0 40 4e 4c 85 mov $0xffffffff854c4e40,%r8 e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 15: fc ff df 18: 4d 8d 48 04 lea 0x4(%r8),%r9 1c: 4c 89 ca mov %r9,%rdx 1f: 48 c1 ea 03 shr $0x3,%rdx 23: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax * 27: 4c 89 ca mov %r9,%rdx <-- trapping instruction 2a: 83 e2 07 and $0x7,%edx 2d: 38 d0 cmp %dl,%al 2f: 7f 08 jg 0x39 31: 84 c0 test %al,%al 33: 0f 85 e4 14 00 00 jne 0x151d 39: 41 rex.B 3a: 0f .byte 0xf 3b: b6 40 mov $0x40,%dh