Warning: Permanently added '10.128.10.8' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 717.504370] INFO: task syz-executor197:8364 blocked for more than 140 seconds. [ 717.511813] Not tainted 4.19.211-syzkaller #0 [ 717.517056] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.525120] syz-executor197 D29984 8364 8094 0x00000004 [ 717.530745] Call Trace: [ 717.533332] __schedule+0x887/0x2040 [ 717.537090] ? io_schedule_timeout+0x140/0x140 [ 717.541682] ? lock_downgrade+0x720/0x720 [ 717.545892] ? __mutex_lock+0x418/0x1190 [ 717.549962] schedule+0x8d/0x1b0 [ 717.553326] schedule_preempt_disabled+0xf/0x20 [ 717.558051] __mutex_lock+0x5f0/0x1190 [ 717.561951] ? __se_sys_perf_event_open+0x1863/0x2720 [ 717.567203] ? mutex_trylock+0x1a0/0x1a0 [ 717.571295] ? __se_sys_perf_event_open+0x1806/0x2720 [ 717.576543] ? lock_acquire+0x170/0x3c0 [ 717.580612] ? __se_sys_perf_event_open+0x1687/0x2720 [ 717.585861] ? check_preemption_disabled+0x41/0x280 [ 717.590890] __se_sys_perf_event_open+0x1863/0x2720 [ 717.595976] ? perf_event_set_output+0x4c0/0x4c0 [ 717.600738] ? lock_downgrade+0x720/0x720 [ 717.604955] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.610326] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.615399] ? do_syscall_64+0x21/0x620 [ 717.619443] do_syscall_64+0xf9/0x620 [ 717.623233] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.628480] RIP: 0033:0x7f70ca9cea99 [ 717.632198] Code: Bad RIP value. [ 717.635624] RSP: 002b:00007f70ca95f318 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 717.643341] RAX: ffffffffffffffda RBX: 00007f70caa563f8 RCX: 00007f70ca9cea99 [ 717.650822] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000020000000 [ 717.658174] RBP: 00007f70caa563f0 R08: 0000000000000000 R09: 0000000000000000 [ 717.665526] R10: 0000000000000003 R11: 0000000000000246 R12: 00007f70caa563fc [ 717.672798] R13: 00007fff9b5fadef R14: 00007f70ca95f400 R15: 0000000000022000 [ 717.680145] [ 717.680145] Showing all locks held in the system: [ 717.686534] 1 lock held by khungtaskd/1569: [ 717.690840] #0: 00000000c0fe97e1 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 717.699497] 1 lock held by in:imklog/7784: [ 717.703717] #0: 000000000b90b42f (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 717.711755] 2 locks held by syz-executor197/8364: [ 717.716649] #0: 00000000be37198f (&cpuctx_mutex){+.+.}, at: __se_sys_perf_event_open+0x1856/0x2720 [ 717.725894] #1: 00000000be37198f (&cpuctx_mutex/1){+.+.}, at: __se_sys_perf_event_open+0x1863/0x2720 [ 717.735340] [ 717.736979] ============================================= [ 717.736979] [ 717.743971] NMI backtrace for cpu 0 [ 717.747664] CPU: 0 PID: 1569 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 717.755224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 717.764564] Call Trace: [ 717.767152] dump_stack+0x1fc/0x2ef [ 717.770852] nmi_cpu_backtrace.cold+0x63/0xa2 [ 717.775344] ? lapic_can_unplug_cpu+0x80/0x80 [ 717.779895] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 717.785288] watchdog+0x991/0xe60 [ 717.788735] ? reset_hung_task_detector+0x30/0x30 [ 717.793573] kthread+0x33f/0x460 [ 717.796938] ? kthread_park+0x180/0x180 [ 717.801007] ret_from_fork+0x24/0x30 [ 717.804808] Sending NMI from CPU 0 to CPUs 1: [ 717.809831] NMI backtrace for cpu 1 [ 717.809837] CPU: 1 PID: 4694 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 717.809842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 717.809846] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 [ 717.809855] Code: ff 48 89 df e8 11 dd 35 00 e9 ab fe ff ff 4c 89 ef e8 04 dd 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <48> 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 [ 717.809859] RSP: 0018:ffff8880a0f07a28 EFLAGS: 00000246 [ 717.809866] RAX: 1ffffffff10df738 RBX: dffffc0000000000 RCX: 1ffff110141e0f60 [ 717.809870] RDX: 0000000000000000 RSI: 00000000000000ac RDI: ffffffff886fb9c0 [ 717.809875] RBP: ffff8880a0f07b00 R08: 0000000000000000 R09: 000000007fff0000 [ 717.809879] R10: 0000000000000004 R11: 0000000000000000 R12: ffffffff886fb460 [ 717.809884] R13: ffffed10141e0f62 R14: ffffc90001ad2040 R15: 00000000000000ac [ 717.809888] FS: 00007f08c08078c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 717.809892] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 717.809897] CR2: 00007f08bdbd7000 CR3: 00000000a1166000 CR4: 00000000003406e0 [ 717.809901] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 717.809906] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 717.809908] Call Trace: [ 717.809911] ___bpf_prog_run+0x22ab/0x4e80 [ 717.809914] ? __bpf_prog_run32+0x8f/0xd0 [ 717.809917] ? __bpf_prog_run64+0xd0/0xd0 [ 717.809921] ? is_bpf_text_address+0xfc/0x1b0 [ 717.809924] ? __kernel_text_address+0x9/0x30 [ 717.809927] ? __save_stack_trace+0xaf/0x190 [ 717.809930] ? check_preemption_disabled+0x41/0x280 [ 717.809934] ? seccomp_run_filters+0x124/0x590 [ 717.809937] ? __kasan_slab_free+0x186/0x1f0 [ 717.809940] ? __put_seccomp_filter+0xa0/0xa0 [ 717.809943] ? kmem_cache_free+0x7f/0x260 [ 717.809946] ? __put_cred+0x1de/0x250 [ 717.809949] ? do_faccessat+0x64e/0x7a0 [ 717.809952] ? do_syscall_64+0xf9/0x620 [ 717.809956] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.809959] ? mark_held_locks+0xf0/0xf0 [ 717.809962] ? kmem_cache_free+0x226/0x260 [ 717.809965] ? __seccomp_filter+0x93/0xca0 [ 717.809968] ? seccomp_send_sigsys+0x1c0/0x1c0 [ 717.809971] ? lock_downgrade+0x720/0x720 [ 717.809974] ? lock_acquire+0x170/0x3c0 [ 717.809978] ? debug_check_no_obj_freed+0xb5/0x490 [ 717.809981] ? trace_hardirqs_off+0x64/0x200 [ 717.809984] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 717.809988] ? debug_check_no_obj_freed+0x201/0x490 [ 717.809991] ? check_preemption_disabled+0x41/0x280 [ 717.809994] ? __secure_computing+0xfc/0x360 [ 717.809998] ? syscall_trace_enter+0x563/0xd60 [ 717.810001] ? syscall_slow_exit_work+0x630/0x630 [ 717.810004] ? do_faccessat+0x43d/0x7a0 [ 717.810008] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.810011] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.810014] ? do_syscall_64+0x21/0x620 [ 717.810017] ? do_syscall_64+0x486/0x620 [ 717.810021] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.810350] Kernel panic - not syncing: hung_task: blocked tasks [ 718.097883] CPU: 0 PID: 1569 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.105311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 718.114643] Call Trace: [ 718.117231] dump_stack+0x1fc/0x2ef [ 718.120848] panic+0x26a/0x50e [ 718.124022] ? __warn_printk+0xf3/0xf3 [ 718.127914] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 718.133040] ? cpumask_next+0x3c/0x40 [ 718.136833] ? printk_safe_flush+0xd6/0x120 [ 718.141145] ? watchdog+0x991/0xe60 [ 718.144861] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.150355] watchdog+0x9a2/0xe60 [ 718.153801] ? reset_hung_task_detector+0x30/0x30 [ 718.158736] kthread+0x33f/0x460 [ 718.162106] ? kthread_park+0x180/0x180 [ 718.166069] ret_from_fork+0x24/0x30 [ 718.170063] Kernel Offset: disabled [ 718.173696] Rebooting in 86400 seconds..