Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.5:18335] Modules linked in: irq event stamp: 42863 hardirqs last enabled at (42862): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (42863): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (37960): [] ipt_do_table+0xccf/0x1820 net/ipv4/netfilter/ip_tables.c:358 softirqs last disabled at (37962): [] lwtunnel_xmit_redirect include/net/lwtunnel.h:92 [inline] softirqs last disabled at (37962): [] ip_finish_output2+0x28d/0x15a0 net/ipv4/ip_output.c:214 CPU: 1 PID: 18335 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:debug_spin_unlock kernel/locking/spinlock_debug.c:99 [inline] RIP: 0010:do_raw_spin_unlock+0x9e/0x230 kernel/locking/spinlock_debug.c:134 Code: 0f 85 6b 01 00 00 8b 45 00 85 c0 0f 84 f4 00 00 00 4c 8d 6d 10 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 <0f> 85 65 01 00 00 65 48 8b 04 25 c0 df 01 00 48 39 45 10 0f 85 d6 RSP: 0018:ffff888096bb72f0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff88809fe73540 RCX: ffffffff814be140 RDX: 1ffff11013fce6b8 RSI: 0000000000000004 RDI: ffff88809fe735b0 RBP: ffff88809fe735b0 R08: 0000000000000000 R09: ffffed1013fce6b6 R10: ffff88809fe735b3 R11: 0000000000074071 R12: 1ffff11012d76e69 R13: ffff88809fe735c0 R14: ffff88809fe735b0 R15: 0000000000000024 FS: 00007fc27ac5f700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30624000 CR3: 00000000aa0f4000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_unlock include/linux/spinlock_api_smp.h:151 [inline] _raw_spin_unlock+0x1f/0x40 kernel/locking/spinlock.c:176 spin_unlock include/linux/spinlock.h:369 [inline] tcf_police_act+0x786/0xe60 net/sched/act_police.c:268 tcf_action_exec net/sched/act_api.c:618 [inline] tcf_action_exec+0x160/0x400 net/sched/act_api.c:598 tcf_exts_exec include/net/pkt_cls.h:388 [inline] route4_classify+0x8d6/0x1420 net/sched/cls_route.c:183 tcf_classify+0x120/0x3c0 net/sched/cls_api.c:979 prio_classify net/sched/sch_prio.c:46 [inline] prio_enqueue+0x3bb/0x7a0 net/sched/sch_prio.c:78 __dev_xmit_skb net/core/dev.c:3494 [inline] __dev_queue_xmit+0x140a/0x2e00 net/core/dev.c:3807 neigh_hh_output include/net/neighbour.h:491 [inline] neigh_output include/net/neighbour.h:499 [inline] ip_finish_output2+0xb6d/0x15a0 net/ipv4/ip_output.c:230 ip_finish_output+0xae9/0x10b0 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip_output+0x203/0x5f0 net/ipv4/ip_output.c:406 dst_output include/net/dst.h:455 [inline] ip_local_out+0xaf/0x170 net/ipv4/ip_output.c:125 ip_send_skb net/ipv4/ip_output.c:1452 [inline] ip_push_pending_frames+0x8b/0x140 net/ipv4/ip_output.c:1472 raw_sendmsg+0x1e9d/0x29e0 net/ipv4/raw.c:677 inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 __sys_sendto+0x21a/0x320 net/socket.c:1899 __do_sys_sendto net/socket.c:1911 [inline] __se_sys_sendto net/socket.c:1907 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1907 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fc27c30b0e9 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc27ac5f168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fc27c41e030 RCX: 00007fc27c30b0e9 RDX: 0000000000000002 RSI: 0000000020000200 RDI: 0000000000000014 RBP: 00007fc27c36508d R08: 0000000020000100 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd82f07dff R14: 00007fc27ac5f300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 11637 Comm: kworker/u4:10 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet RIP: 0010:batadv_iv_ogm_schedule_buff+0xc61/0x1340 net/batman-adv/bat_iv_ogm.c:1025 Code: 48 89 44 24 18 48 c1 e8 03 48 89 44 24 20 eb 27 e8 c4 69 8d f9 48 89 d8 48 c1 e8 03 42 80 3c 38 00 0f 85 be 06 00 00 48 8b 1b <48> 81 fb 60 8c db 8d 0f 84 78 02 00 00 e8 9d 69 8d f9 48 8d 7b 78 RSP: 0018:ffff888057e37bc0 EFLAGS: 00000246 RAX: 1ffff110152ec800 RBX: ffff888092d13b00 RCX: ffffffff87d51e2a RDX: 0000000000000000 RSI: ffffffff87d51bac RDI: ffff8880a9764078 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880a9ea1230 R13: ffff888092e6a4c0 R14: ffff8880a9734cc0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555565cb848 CR3: 000000009abdf000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:1052 [inline] batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:1045 [inline] batadv_iv_send_outstanding_bat_ogm_packet+0x68c/0x7a0 net/batman-adv/bat_iv_ogm.c:1871 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 ---------------- Code disassembly (best guess): 0: 0f 85 6b 01 00 00 jne 0x171 6: 8b 45 00 mov 0x0(%rbp),%eax 9: 85 c0 test %eax,%eax b: 0f 84 f4 00 00 00 je 0x105 11: 4c 8d 6d 10 lea 0x10(%rbp),%r13 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 4c 89 ea mov %r13,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 2a: 0f 85 65 01 00 00 jne 0x195 <-- trapping instruction 30: 65 48 8b 04 25 c0 df mov %gs:0x1dfc0,%rax 37: 01 00 39: 48 39 45 10 cmp %rax,0x10(%rbp) 3d: 0f .byte 0xf 3e: 85 d6 test %edx,%esi