INFO: task syz-executor.2:22914 blocked for more than 143 seconds. Not tainted 5.19.0-rc5-syzkaller-00225-ge45955766b43 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29096 pid:22914 ppid: 3640 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5146 [inline] __schedule+0xa00/0x4b50 kernel/sched/core.c:6458 schedule+0xd2/0x1f0 kernel/sched/core.c:6530 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6589 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747 tls_sw_sendmsg+0x251/0x1820 net/tls/tls_sw.c:951 inet6_sendmsg+0x99/0xe0 net/ipv6/af_inet6.c:652 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 __sys_sendto+0x21a/0x320 net/socket.c:2119 __do_sys_sendto net/socket.c:2131 [inline] __se_sys_sendto net/socket.c:2127 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2127 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+0x46/0xb0 RIP: 0033:0x7f0c91a89109 RSP: 002b:00007f0c92c8b168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f0c91b9c030 RCX: 00007f0c91a89109 RDX: 0000000000000001 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 00007f0c91ae305d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffecf02506f R14: 00007f0c92c8b300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/28: #0: ffffffff8bd86660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491 2 locks held by kworker/u4:2/41: 2 locks held by getty/3282: #0: ffff88814ad60098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc90002d162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2124 5 locks held by kworker/u4:8/14360: 3 locks held by kworker/1:3/14398: #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260 #1: ffffc90002e7fda8 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264 #2: ffff8880778284d8 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x127/0x190 net/tls/tls_sw.c:2223 1 lock held by syz-executor.2/22914: #0: ffff8880778284d8 (&ctx->tx_lock){+.+.}-{3:3}, at: tls_sw_sendmsg+0x251/0x1820 net/tls/tls_sw.c:951 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.19.0-rc5-syzkaller-00225-ge45955766b43 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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:111 nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline] watchdog+0xc1d/0xf50 kernel/hung_task.c:369 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 41 Comm: kworker/u4:2 Not tainted 5.19.0-rc5-syzkaller-00225-ge45955766b43 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 Workqueue: bat_events batadv_nc_worker RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:check_preemption_disabled+0x4c/0x170 lib/smp_processor_id.c:19 Code: 81 e3 ff ff ff 7f 31 ff 89 de 0f 1f 44 00 00 85 db 74 11 0f 1f 44 00 00 44 89 e0 5b 5d 41 5c 41 5d 41 5e c3 0f 1f 44 00 00 9c <5b> 81 e3 00 02 00 00 31 ff 48 89 de 0f 1f 44 00 00 48 85 db 74 d3 RSP: 0018:ffffc90000b27b60 EFLAGS: 00000046 RAX: 0000000000000007 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffffff8a285780 R08: 0000000000000000 R09: ffffffff8dbb9f97 R10: fffffbfff1b773f2 R11: 0000000000000001 R12: 0000000000000000 R13: ffffffff89cc7d20 R14: ffffffff8bd86660 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00c5c20c0 CR3: 000000007f93f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lockdep_recursion_inc kernel/locking/lockdep.c:461 [inline] lock_acquire kernel/locking/lockdep.c:5664 [inline] lock_acquire+0x170/0x570 kernel/locking/lockdep.c:5630 rcu_lock_acquire include/linux/rcupdate.h:269 [inline] rcu_read_lock include/linux/rcupdate.h:695 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline] batadv_nc_worker+0x12d/0xfa0 net/batman-adv/network-coding.c:719 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302 ---------------- Code disassembly (best guess): 0: 81 e3 ff ff ff 7f and $0x7fffffff,%ebx 6: 31 ff xor %edi,%edi 8: 89 de mov %ebx,%esi a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) f: 85 db test %ebx,%ebx 11: 74 11 je 0x24 13: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 18: 44 89 e0 mov %r12d,%eax 1b: 5b pop %rbx 1c: 5d pop %rbp 1d: 41 5c pop %r12 1f: 41 5d pop %r13 21: 41 5e pop %r14 23: c3 retq 24: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 29: 9c pushfq * 2a: 5b pop %rbx <-- trapping instruction 2b: 81 e3 00 02 00 00 and $0x200,%ebx 31: 31 ff xor %edi,%edi 33: 48 89 de mov %rbx,%rsi 36: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 3b: 48 85 db test %rbx,%rbx 3e: 74 d3 je 0x13