Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.4:8135 blocked for more than 140 seconds. Not tainted 4.19.182-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D24368 8135 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x647/0x1260 kernel/locking/mutex.c:1072 xt_find_table_lock+0x3d/0x430 net/netfilter/x_tables.c:1213 xt_request_find_table_lock+0x27/0xd0 net/netfilter/x_tables.c:1260 get_info+0x12f/0x4e0 net/ipv6/netfilter/ip6_tables.c:984 do_ip6t_get_ctl+0x14e/0x910 net/ipv6/netfilter/ip6_tables.c:1708 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:122 ipv6_getsockopt+0x1b6/0x260 net/ipv6/ipv6_sockglue.c:1388 tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:3629 __sys_getsockopt+0x135/0x210 net/socket.c:1938 __do_sys_getsockopt net/socket.c:1949 [inline] __se_sys_getsockopt net/socket.c:1946 [inline] __x64_sys_getsockopt+0xba/0x150 net/socket.c:1946 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x467a6a Code: 48 8b 05 41 75 3f 01 48 89 44 24 08 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 64 48 8b 0c 25 f8 ff ff ff 48 <3b> 61 10 0f 86 cd 00 00 00 48 83 ec 60 48 89 6c 24 58 48 8d 6c 24 RSP: 002b:00007fff30cb15f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 0000000000000029 RCX: 0000000000467a6a RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 RBP: 0000000000000003 R08: 00007fff30cb162c R09: 0079746972756365 R10: 0000000000541b48 R11: 0000000000000202 R12: 00007fff30cb162c R13: 00000000004bff6a R14: 0000000000541b48 R15: 0000000000541b40 INFO: task syz-executor.5:8137 blocked for more than 140 seconds. Not tainted 4.19.182-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D24256 8137 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 exp_funnel_lock kernel/rcu/tree_exp.h:320 [inline] _synchronize_rcu_expedited+0x60c/0x6f0 kernel/rcu/tree_exp.h:667 synchronize_rcu+0xc6/0x160 kernel/rcu/tree_plugin.h:818 xt_replace_table+0x2ff/0x640 net/netfilter/x_tables.c:1396 xt_register_table+0x27a/0x5d0 net/netfilter/x_tables.c:1439 ip6t_register_table+0x197/0x2f0 net/ipv6/netfilter/ip6_tables.c:1789 ip6table_security_table_init net/ipv6/netfilter/ip6table_security.c:61 [inline] ip6table_security_table_init+0x82/0xc0 net/ipv6/netfilter/ip6table_security.c:50 xt_find_table_lock+0x289/0x430 net/netfilter/x_tables.c:1230 xt_request_find_table_lock+0x27/0xd0 net/netfilter/x_tables.c:1260 get_info+0x12f/0x4e0 net/ipv6/netfilter/ip6_tables.c:984 do_ip6t_get_ctl+0x14e/0x910 net/ipv6/netfilter/ip6_tables.c:1708 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:122 ipv6_getsockopt+0x1b6/0x260 net/ipv6/ipv6_sockglue.c:1388 tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:3629 __sys_getsockopt+0x135/0x210 net/socket.c:1938 __do_sys_getsockopt net/socket.c:1949 [inline] __se_sys_getsockopt net/socket.c:1946 [inline] __x64_sys_getsockopt+0xba/0x150 net/socket.c:1946 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x467a6a Code: 48 8b 05 41 75 3f 01 48 89 44 24 08 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 64 48 8b 0c 25 f8 ff ff ff 48 <3b> 61 10 0f 86 cd 00 00 00 48 83 ec 60 48 89 6c 24 58 48 8d 6c 24 RSP: 002b:00007fff34389da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 0000000000000029 RCX: 0000000000467a6a RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 RBP: 0000000000000003 R08: 00007fff34389ddc R09: 0079746972756365 R10: 0000000000543648 R11: 0000000000000246 R12: 00007fff34389ddc R13: 00000000004c854f R14: 0000000000543648 R15: 0000000000543640 Showing all locks held in the system: 1 lock held by khungtaskd/1567: #0: 000000003cce648b (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440 1 lock held by syz-executor.4/8135: #0: 000000009b392bc0 (&xt[i].mutex){+.+.}, at: xt_find_table_lock+0x3d/0x430 net/netfilter/x_tables.c:1213 1 lock held by syz-executor.5/8137: #0: 000000009b392bc0 (&xt[i].mutex){+.+.}, at: xt_register_table+0xda/0x5d0 net/netfilter/x_tables.c:1427 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1567 Comm: khungtaskd Not tainted 4.19.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7794 Comm: rs:main Q:Reg Not tainted 4.19.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0033:0x562680063922 Code: 54 24 18 48 01 53 48 48 85 c0 74 03 48 01 10 80 7b 5a 00 0f 85 8f 00 00 00 83 7b 10 01 0f 84 4d 01 00 00 48 8b 83 50 02 00 00 <48> 85 c0 75 61 48 8b 4c 24 28 64 48 33 0c 25 28 00 00 00 89 e8 0f RSP: 002b:00007fc03e66ca00 EFLAGS: 00000297 RAX: 0000000000000000 RBX: 00007fc03400a9c0 RCX: 0000000000000000 RDX: 00000000000003e1 RSI: 00007fc03400ac60 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00007fc03400ac60 R13: 00005626802cebec R14: 000056268040a440 R15: 000000000000000c FS: 00007fc03e66d700 GS: 0000000000000000