INFO: task syz-executor.0:20190 blocked for more than 143 seconds. Not tainted 5.15.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:29512 pid:20190 ppid: 6542 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4940 [inline] __schedule+0xb44/0x5960 kernel/sched/core.c:6287 schedule+0xd3/0x270 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:669 [inline] __mutex_lock+0xa34/0x12f0 kernel/locking/mutex.c:729 tls_sw_sendmsg+0x245/0x17f0 net/tls/tls_sw.c:948 inet6_sendmsg+0x99/0xe0 net/ipv6/af_inet6.c:643 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 __sys_sendto+0x21c/0x320 net/socket.c:2036 __do_sys_sendto net/socket.c:2048 [inline] __se_sys_sendto net/socket.c:2044 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2044 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fc35acf8a39 RSP: 002b:00007fc35824d188 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fc35adfc020 RCX: 00007fc35acf8a39 RDX: 0000000000000073 RSI: 00000000200000c0 RDI: 0000000000000005 RBP: 00007fc35ad52c5f R08: 0000000020000040 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffc38e465f R14: 00007fc35824d300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/26: #0: ffffffff8b981ee0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446 1 lock held by in:imklog/6234: #0: ffff88807315bc70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990 4 locks held by kworker/0:22/1678: #0: ffff8880b9c31a58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:474 #1: ffff8880b9c1f9c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x39d/0x480 kernel/sched/psi.c:880 #2: ffff8880b9c20258 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:946 #3: ffffffff8b9a1348 (tk_core.seq.seqcount){----}-{0:0}, at: ktime_get_coarse_boottime include/linux/timekeeping.h:100 [inline] #3: ffffffff8b9a1348 (tk_core.seq.seqcount){----}-{0:0}, at: ktime_get_coarse_boottime_ns include/linux/timekeeping.h:136 [inline] #3: ffffffff8b9a1348 (tk_core.seq.seqcount){----}-{0:0}, at: wg_birthdate_has_expired drivers/net/wireguard/timers.h:28 [inline] #3: ffffffff8b9a1348 (tk_core.seq.seqcount){----}-{0:0}, at: keep_key_fresh drivers/net/wireguard/send.c:134 [inline] #3: ffffffff8b9a1348 (tk_core.seq.seqcount){----}-{0:0}, at: wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline] #3: ffffffff8b9a1348 (tk_core.seq.seqcount){----}-{0:0}, at: wg_packet_tx_worker+0x61d/0x720 drivers/net/wireguard/send.c:276 3 locks held by kworker/0:35/1689: #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 kernel/workqueue.c:2268 #1: ffffc9000508fdb0 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 kernel/workqueue.c:2272 #2: ffff88808300c4d8 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x127/0x190 net/tls/tls_sw.c:2274 1 lock held by syz-executor.0/20190: #0: ffff88808300c4d8 (&ctx->tx_lock){+.+.}-{3:3}, at: tls_sw_sendmsg+0x245/0x17f0 net/tls/tls_sw.c:948 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.15.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xc1d/0xf50 kernel/hung_task.c:295 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 1216 Comm: kworker/u4:5 Not tainted 5.15.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_mcast_mla_update RIP: 0010:select_idle_cpu kernel/sched/fair.c:6313 [inline] RIP: 0010:select_idle_sibling kernel/sched/fair.c:6488 [inline] RIP: 0010:select_task_rq_fair+0x1a88/0x3b60 kernel/sched/fair.c:6965 Code: 24 08 ff ff ff ff 8b 54 24 44 b9 01 00 00 00 48 8b 74 24 38 8b 7c 24 18 e8 b5 e2 a0 02 83 f8 07 89 44 24 18 0f 87 7b 07 00 00 <80> 7c 24 30 00 0f 84 21 ff ff ff 0f 1f 44 00 00 48 63 5c 24 18 49 RSP: 0018:ffffc90004f8fb80 EFLAGS: 00000086 RAX: ffffed1004cd0405 RBX: 00000000000002b4 RCX: 0000000000000000 RDX: ffff88801d24d580 RSI: ffffffff83f4a853 RDI: 0000000000000003 RBP: ffff888010e1bc00 R08: 0000000000000007 R09: 0000000000000001 R10: ffffffff83f4a791 R11: 0000000000000000 R12: ffff8880b9d32658 R13: 0000000000079e68 R14: 000000010003cd70 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f227d373018 CR3: 0000000014bc7000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: select_task_rq kernel/sched/core.c:3396 [inline] try_to_wake_up+0x38b/0x1570 kernel/sched/core.c:4082 wake_up_worker kernel/workqueue.c:855 [inline] process_one_work+0x7dc/0x16b0 kernel/workqueue.c:2260 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess), 5 bytes skipped: 0: ff 8b 54 24 44 b9 decl -0x46bbdbac(%rbx) 6: 01 00 add %eax,(%rax) 8: 00 00 add %al,(%rax) a: 48 8b 74 24 38 mov 0x38(%rsp),%rsi f: 8b 7c 24 18 mov 0x18(%rsp),%edi 13: e8 b5 e2 a0 02 callq 0x2a0e2cd 18: 83 f8 07 cmp $0x7,%eax 1b: 89 44 24 18 mov %eax,0x18(%rsp) 1f: 0f 87 7b 07 00 00 ja 0x7a0 * 25: 80 7c 24 30 00 cmpb $0x0,0x30(%rsp) <-- trapping instruction 2a: 0f 84 21 ff ff ff je 0xffffff51 30: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 35: 48 63 5c 24 18 movslq 0x18(%rsp),%rbx 3a: 49 rex.WB