ip6_tunnel: ip6tnl2 xmit: Local address not yet configured! ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! INFO: task syz-executor5:3734 blocked for more than 140 seconds. Not tainted 4.14.85+ #15 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor5 D29784 3734 1843 0x10000004 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 perf_trace_init+0x4d/0xa30 kernel/trace/trace_event_perf.c:216 perf_tp_event_init+0x78/0xe0 kernel/events/core.c:8101 perf_try_init_event+0x161/0x200 kernel/events/core.c:9329 perf_init_event kernel/events/core.c:9367 [inline] perf_event_alloc.part.48+0xd24/0x1ea0 kernel/events/core.c:9627 perf_event_alloc kernel/events/core.c:9980 [inline] SYSC_perf_event_open kernel/events/core.c:10087 [inline] SyS_perf_event_open+0x742/0x27d0 kernel/events/core.c:9970 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457569 RSP: 002b:00007fd25ff7fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457569 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000204e7000 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fd25ff806d4 R13: 00000000004c3338 R14: 00000000004d5560 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x74/0x20f kernel/locking/lockdep.c:4541 2 locks held by getty/1755: #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x20/0x80 drivers/tty/tty_ldisc.c:275 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1ff/0x1700 drivers/tty/n_tty.c:2156 1 lock held by syz-executor5/4733: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/4750: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/14813: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/28048: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/29036: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/29040: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/8358: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 2 locks held by syz-executor5/10915: #0: (&ctx->mutex){+.+.}, at: [] perf_event_exit_task_context kernel/events/core.c:10648 [inline] #0: (&ctx->mutex){+.+.}, at: [] perf_event_exit_task+0x24c/0xa30 kernel/events/core.c:10714 #1: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/10917: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/10941: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/14837: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/15888: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/29086: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/812: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/3183: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/4969: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/6125: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/14162: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/17505: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/22538: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/27260: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/28549: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/29107: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/29961: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/30594: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/30643: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 1 lock held by syz-executor5/2538: #0: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x23/0x100 kernel/trace/trace_event_perf.c:234 3 locks held by syz-executor5/3734: #0: (&sig->cred_guard_mutex){+.+.}, at: [] SYSC_perf_event_open kernel/events/core.c:10067 [inline] #0: (&sig->cred_guard_mutex){+.+.}, at: [] SyS_perf_event_open+0x13d9/0x27d0 kernel/events/core.c:9970 #1: (&pmus_srcu){....}, at: [] perf_event_alloc.part.48+0xb26/0x1ea0 kernel/events/core.c:9606 #2: (event_mutex){+.+.}, at: [] perf_trace_init+0x4d/0xa30 kernel/trace/trace_event_perf.c:216 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.85+ #15 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 nmi_cpu_backtrace.cold.0+0x47/0x85 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x121/0x146 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:196 [inline] watchdog+0x574/0xa70 kernel/hung_task.c:252 kthread+0x348/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3713 Comm: syz-executor4 Not tainted 4.14.85+ #15 task: ffff888185134680 task.stack: ffff888155260000 RIP: 0010:__sanitizer_cov_trace_pc+0x3b/0x60 kernel/kcov.c:74 RSP: 0000:ffff888155267ce8 EFLAGS: 00000287 RAX: ffff888185134680 RBX: dffffc0000000000 RCX: 0000000000040000 RDX: ffffffff81002b42 RSI: ffff888155267f58 RDI: ffffffff99630800 RBP: ffff888155267dd8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1102aa4cfa2 R13: ffffffff99630800 R14: ffff888155267db0 R15: ffffffff97202ab0 FS: 00007fe2f2ecb700(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001ef3978 CR3: 000000018ee3c001 CR4: 00000000001606a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: perf_trace_sys_exit+0x92/0x400 include/trace/events/syscalls.h:44 trace_sys_exit include/trace/events/syscalls.h:44 [inline] syscall_slow_exit_work+0x3c4/0x560 arch/x86/entry/common.c:229 syscall_return_slowpath arch/x86/entry/common.c:264 [inline] do_syscall_32_irqs_on arch/x86/entry/common.c:338 [inline] do_int80_syscall_32+0x371/0x4e0 arch/x86/entry/common.c:346 entry_INT80_compat+0x50/0x60 arch/x86/entry/entry_64_compat.S:389 Code: 15 bb 1d b1 68 81 e2 00 01 1f 00 75 0b 8b 90 a8 11 00 00 83 fa 01 74 01 c3 48 c7 c2 00 00 00 81 48 81 ea 00 00 20 97 48 03 14 24 <48> 8b b0 b0 11 00 00 8b 80 ac 11 00 00 48 8b 0e 48 83 c1 01 48