[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 15.112192] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.201057] random: sshd: uninitialized urandom read (32 bytes read) [ 17.400815] random: sshd: uninitialized urandom read (32 bytes read) [ 18.136235] random: sshd: uninitialized urandom read (32 bytes read) [ 577.964557] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts. [ 583.405171] random: sshd: uninitialized urandom read (32 bytes read) 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 [ 861.152179] INFO: task syz-executor592:4465 blocked for more than 140 seconds. [ 861.159599] Not tainted 4.18.0-rc5+ #132 [ 861.164188] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 861.172157] syz-executor592 D24544 4465 4464 0x00000000 [ 861.177854] Call Trace: [ 861.180492] __schedule+0x87c/0x1ed0 [ 861.184216] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 861.188813] ? __sched_text_start+0x8/0x8 [ 861.193004] ? _raw_spin_unlock+0x22/0x30 [ 861.197163] ? __queue_work+0x68d/0x1410 [ 861.201239] ? kasan_check_read+0x11/0x20 [ 861.205391] ? flush_rcu_work+0x90/0x90 [ 861.209369] ? kasan_check_write+0x14/0x20 [ 861.213603] ? do_raw_spin_lock+0xc1/0x200 [ 861.217844] ? trace_hardirqs_off+0xd/0x10 [ 861.222075] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 861.227188] ? debug_check_no_obj_freed+0x30b/0x595 [ 861.232233] schedule+0xfb/0x450 [ 861.235622] ? padata_do_parallel+0x5da/0x8d0 [ 861.240115] ? __schedule+0x1ed0/0x1ed0 [ 861.244099] ? kasan_check_read+0x11/0x20 [ 861.248251] ? lock_acquire+0x1e4/0x540 [ 861.252236] ? wait_for_completion+0x428/0x8d0 [ 861.256823] schedule_timeout+0x1cc/0x260 [ 861.260988] ? usleep_range+0x1a0/0x1a0 [ 861.264973] ? do_raw_spin_unlock+0xa7/0x2f0 [ 861.269393] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 861.273984] ? kasan_check_write+0x14/0x20 [ 861.278223] ? do_raw_spin_lock+0xc1/0x200 [ 861.282487] wait_for_completion+0x430/0x8d0 [ 861.287627] ? wait_for_completion_interruptible+0x950/0x950 [ 861.293425] ? wake_up_q+0x100/0x100 [ 861.297148] ? pcrypt_aead_enc+0x190/0x190 [ 861.301441] ? sock_kmalloc+0x182/0x1f0 [ 861.305459] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 861.311005] ? pcrypt_aead_decrypt+0x370/0x460 [ 861.315618] aead_recvmsg+0x1544/0x1bb0 [ 861.319602] ? aead_release+0x50/0x50 [ 861.323401] ? aead_release+0x50/0x50 [ 861.327239] sock_recvmsg_nosec+0x8c/0xb0 [ 861.331393] ? __sock_tx_timestamp+0xd0/0xd0 [ 861.335809] ___sys_recvmsg+0x2b6/0x680 [ 861.339790] ? ___sys_sendmsg+0x930/0x930 [ 861.343947] ? alloc_pages_current+0x114/0x210 [ 861.348542] ? af_alg_sendmsg+0x93e/0x1190 [ 861.352789] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 861.358334] ? lock_acquire+0x1e4/0x540 [ 861.362316] ? __might_fault+0x12b/0x1e0 [ 861.366373] ? lock_downgrade+0x8f0/0x8f0 [ 861.370526] ? af_alg_sendpage+0xb50/0xb50 [ 861.374762] ? lock_release+0xa30/0xa30 [ 861.378745] ? check_same_owner+0x340/0x340 [ 861.383065] ? rcu_note_context_switch+0x730/0x730 [ 861.388176] ? check_same_owner+0x340/0x340 [ 861.392512] __sys_recvmmsg+0x301/0xba0 [ 861.396495] ? __ia32_sys_recvmsg+0xb0/0xb0 [ 861.400818] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 861.406359] ? __vfs_write+0x11f/0x9f0 [ 861.410248] ? fsnotify+0xbb4/0x14e0 [ 861.413971] ? fsnotify_first_mark+0x350/0x350 [ 861.418565] ? __fsnotify_parent+0xcc/0x420 [ 861.422896] ? __sys_accept4+0x5ad/0x8a0 [ 861.426957] ? fsnotify+0x14e0/0x14e0 [ 861.430767] ? vfs_write+0x2a8/0x560 [ 861.434486] do_sys_recvmmsg+0x181/0x1a0 [ 861.438567] ? __sys_recvmmsg+0xba0/0xba0 [ 861.442722] ? __ia32_sys_read+0xb0/0xb0 [ 861.446792] ? syscall_slow_exit_work+0x500/0x500 [ 861.451820] __x64_sys_recvmmsg+0xbe/0x150 [ 861.456063] do_syscall_64+0x1b9/0x820 [ 861.459953] ? syscall_return_slowpath+0x5e0/0x5e0 [ 861.464892] ? syscall_return_slowpath+0x31d/0x5e0 [ 861.469829] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 861.474856] ? prepare_exit_to_usermode+0x291/0x3b0 [ 861.479891] ? perf_trace_sys_enter+0xb10/0xb10 [ 861.484567] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 861.489421] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 861.494612] RIP: 0033:0x4407b9 [ 861.497806] Code: Bad RIP value. [ 861.501188] RSP: 002b:00007ffe6735bf58 EFLAGS: 00000207 ORIG_RAX: 000000000000012b [ 861.508907] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 00000000004407b9 [ 861.516203] RDX: 0000000000000002 RSI: 0000000020003340 RDI: 0000000000000019 [ 861.523478] RBP: 00000000006cb018 R08: 0000000000000000 R09: 00000000004002c8 [ 861.530764] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401c40 [ 861.538054] R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000 [ 861.545345] INFO: task syz-executor592:4466 blocked for more than 140 seconds. [ 861.552790] Not tainted 4.18.0-rc5+ #132 [ 861.557376] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 861.565338] syz-executor592 D24448 4466 4464 0x00000000 [ 861.570983] Call Trace: [ 861.573575] __schedule+0x87c/0x1ed0 [ 861.577303] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 861.581894] ? __sched_text_start+0x8/0x8 [ 861.586048] ? _raw_spin_unlock+0x22/0x30 [ 861.590196] ? __queue_work+0x68d/0x1410 [ 861.594263] ? kasan_check_read+0x11/0x20 [ 861.598412] ? flush_rcu_work+0x90/0x90 [ 861.602394] ? kasan_check_write+0x14/0x20 [ 861.606632] ? do_raw_spin_lock+0xc1/0x200 [ 861.610877] ? trace_hardirqs_off+0xd/0x10 [ 861.615123] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 861.620236] ? debug_check_no_obj_freed+0x30b/0x595 [ 861.625255] schedule+0xfb/0x450 [ 861.628629] ? padata_do_parallel+0x5da/0x8d0 [ 861.633119] ? __schedule+0x1ed0/0x1ed0 [ 861.637098] ? kasan_check_read+0x11/0x20 [ 861.641244] ? lock_acquire+0x1e4/0x540 [ 861.645221] ? wait_for_completion+0x428/0x8d0 [ 861.649813] schedule_timeout+0x1cc/0x260 [ 861.653971] ? usleep_range+0x1a0/0x1a0 [ 861.657955] ? do_raw_spin_unlock+0xa7/0x2f0 [ 861.662378] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 861.666970] ? kasan_check_write+0x14/0x20 [ 861.671213] ? do_raw_spin_lock+0xc1/0x200 [ 861.675453] wait_for_completion+0x430/0x8d0 [ 861.679868] ? wait_for_completion_interruptible+0x950/0x950 [ 861.685681] ? wake_up_q+0x100/0x100 [ 861.689424] ? pcrypt_aead_enc+0x190/0x190 [ 861.693661] ? sock_kmalloc+0x182/0x1f0 [ 861.697648] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 861.703190] ? pcrypt_aead_decrypt+0x370/0x460 [ 861.707783] aead_recvmsg+0x1544/0x1bb0 [ 861.711762] ? aead_release+0x50/0x50 [ 861.715573] ? aead_release+0x50/0x50 [ 861.719375] sock_recvmsg_nosec+0x8c/0xb0 [ 861.723540] ? __sock_tx_timestamp+0xd0/0xd0 [ 861.727952] ___sys_recvmsg+0x2b6/0x680 [ 861.731937] ? ___sys_sendmsg+0x930/0x930 [ 861.736085] ? alloc_pages_current+0x114/0x210 [ 861.740673] ? af_alg_sendmsg+0x93e/0x1190 [ 861.744929] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 861.750478] ? lock_acquire+0x1e4/0x540 [ 861.754451] ? __might_fault+0x12b/0x1e0 [ 861.758519] ? lock_downgrade+0x8f0/0x8f0 [ 861.762665] ? af_alg_sendpage+0xb50/0xb50 [ 861.766911] ? lock_release+0xa30/0xa30 [ 861.770885] ? check_same_owner+0x340/0x340 [ 861.775224] ? rcu_note_context_switch+0x730/0x730 [ 861.780158] ? check_same_owner+0x340/0x340 [ 861.784491] __sys_recvmmsg+0x301/0xba0 [ 861.788486] ? __ia32_sys_recvmsg+0xb0/0xb0 [ 861.792820] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 861.798370] ? __vfs_write+0x11f/0x9f0 [ 861.802271] ? fsnotify+0xbb4/0x14e0 [ 861.805986] ? fsnotify_first_mark+0x350/0x350 [ 861.810591] ? __fsnotify_parent+0xcc/0x420 [ 861.814917] ? __sys_accept4+0x5ad/0x8a0 [ 861.818989] ? fsnotify+0x14e0/0x14e0 [ 861.822803] ? vfs_write+0x2a8/0x560 [ 861.826531] do_sys_recvmmsg+0x181/0x1a0 [ 861.830595] ? __sys_recvmmsg+0xba0/0xba0 [ 861.834753] ? __ia32_sys_read+0xb0/0xb0 [ 861.838817] ? syscall_slow_exit_work+0x500/0x500 [ 861.843675] __x64_sys_recvmmsg+0xbe/0x150 [ 861.847916] do_syscall_64+0x1b9/0x820 [ 861.851813] ? syscall_slow_exit_work+0x500/0x500 [ 861.856656] ? syscall_return_slowpath+0x5e0/0x5e0 [ 861.861593] ? syscall_return_slowpath+0x31d/0x5e0 [ 861.866525] ? prepare_exit_to_usermode+0x291/0x3b0 [ 861.871549] ? perf_trace_sys_enter+0xb10/0xb10 [ 861.876220] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 861.881073] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 861.886258] RIP: 0033:0x4407b9 [ 861.889444] Code: Bad RIP value. [ 861.892815] RSP: 002b:00007ffe6735bf58 EFLAGS: 00000207 ORIG_RAX: 000000000000012b [ 861.900534] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 00000000004407b9 [ 861.907806] RDX: 0000000000000002 RSI: 0000000020003340 RDI: 0000000000000013 [ 861.915084] RBP: 00000000006cb018 R08: 0000000000000000 R09: 00000000004002c8 [ 861.922354] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401c40 [ 861.929635] R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000 [ 861.936929] INFO: task syz-executor592:4467 blocked for more than 140 seconds. [ 861.944294] Not tainted 4.18.0-rc5+ #132 [ 861.948876] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 861.956865] syz-executor592 D24240 4467 4464 0x00000000 [ 861.962685] Call Trace: [ 861.965281] __schedule+0x87c/0x1ed0 [ 861.968992] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 861.973580] ? __sched_text_start+0x8/0x8 [ 861.977734] ? _raw_spin_unlock+0x22/0x30 [ 861.981893] ? __queue_work+0x68d/0x1410 [ 861.985957] ? kasan_check_read+0x11/0x20 [ 861.990114] ? flush_rcu_work+0x90/0x90 [ 861.994088] ? kasan_check_write+0x14/0x20 [ 861.998326] ? do_raw_spin_lock+0xc1/0x200 [ 862.002556] ? trace_hardirqs_off+0xd/0x10 [ 862.006790] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 862.011896] ? debug_check_no_obj_freed+0x30b/0x595 [ 862.016917] schedule+0xfb/0x450 [ 862.020277] ? padata_do_parallel+0x5da/0x8d0 [ 862.024771] ? __schedule+0x1ed0/0x1ed0 [ 862.028742] ? kasan_check_read+0x11/0x20 [ 862.032892] ? lock_acquire+0x1e4/0x540 [ 862.036861] ? wait_for_completion+0x428/0x8d0 [ 862.041447] schedule_timeout+0x1cc/0x260 [ 862.045594] ? usleep_range+0x1a0/0x1a0 [ 862.049570] ? do_raw_spin_unlock+0xa7/0x2f0 [ 862.053983] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 862.058578] ? kasan_check_write+0x14/0x20 [ 862.062821] ? do_raw_spin_lock+0xc1/0x200 [ 862.067060] wait_for_completion+0x430/0x8d0 [ 862.071472] ? wait_for_completion_interruptible+0x950/0x950 [ 862.077281] ? wake_up_q+0x100/0x100 [ 862.080998] ? pcrypt_aead_enc+0x190/0x190 [ 862.085244] ? sock_kmalloc+0x182/0x1f0 [ 862.089222] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 862.094786] ? pcrypt_aead_decrypt+0x370/0x460 [ 862.099376] aead_recvmsg+0x1544/0x1bb0 [ 862.103364] ? aead_release+0x50/0x50 [ 862.107167] ? aead_release+0x50/0x50 [ 862.110979] sock_recvmsg_nosec+0x8c/0xb0 [ 862.115128] ? __sock_tx_timestamp+0xd0/0xd0 [ 862.119548] ___sys_recvmsg+0x2b6/0x680 [ 862.123522] ? ___sys_sendmsg+0x930/0x930 [ 862.127678] ? alloc_pages_current+0x114/0x210 [ 862.132266] ? af_alg_sendmsg+0x93e/0x1190 [ 862.136510] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 862.142050] ? lock_acquire+0x1e4/0x540 [ 862.146043] ? __might_fault+0x12b/0x1e0 [ 862.150101] ? lock_downgrade+0x8f0/0x8f0 [ 862.154255] ? af_alg_sendpage+0xb50/0xb50 [ 862.158489] ? lock_release+0xa30/0xa30 [ 862.162464] ? check_same_owner+0x340/0x340 [ 862.166793] ? rcu_note_context_switch+0x730/0x730 [ 862.171727] ? check_same_owner+0x340/0x340 [ 862.176058] __sys_recvmmsg+0x301/0xba0 [ 862.180054] ? __ia32_sys_recvmsg+0xb0/0xb0 [ 862.184380] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 862.189937] ? __vfs_write+0x11f/0x9f0 [ 862.193827] ? fsnotify+0xbb4/0x14e0 [ 862.197549] ? fsnotify_first_mark+0x350/0x350 [ 862.202136] ? __fsnotify_parent+0xcc/0x420 [ 862.206465] ? __sys_accept4+0x5ad/0x8a0 [ 862.210522] ? fsnotify+0x14e0/0x14e0 [ 862.214333] ? vfs_write+0x2a8/0x560 [ 862.218046] do_sys_recvmmsg+0x181/0x1a0 [ 862.222115] ? __sys_recvmmsg+0xba0/0xba0 [ 862.226260] ? __ia32_sys_read+0xb0/0xb0 [ 862.230322] ? syscall_slow_exit_work+0x500/0x500 [ 862.235165] __x64_sys_recvmmsg+0xbe/0x150 [ 862.239399] do_syscall_64+0x1b9/0x820 [ 862.243284] ? syscall_return_slowpath+0x5e0/0x5e0 [ 862.248212] ? syscall_return_slowpath+0x31d/0x5e0 [ 862.253138] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 862.258159] ? prepare_exit_to_usermode+0x291/0x3b0 [ 862.263173] ? perf_trace_sys_enter+0xb10/0xb10 [ 862.267844] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 862.272703] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 862.277903] RIP: 0033:0x4407b9 [ 862.281092] Code: Bad RIP value. [ 862.284470] RSP: 002b:00007ffe6735bf58 EFLAGS: 00000207 ORIG_RAX: 000000000000012b [ 862.292176] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 00000000004407b9 [ 862.299451] RDX: 0000000000000002 RSI: 0000000020003340 RDI: 0000000000000016 [ 862.306718] RBP: 00000000006cb018 R08: 0000000000000000 R09: 00000000004002c8 [ 862.313999] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401c40 [ 862.321273] R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000 [ 862.328559] INFO: task syz-executor592:4468 blocked for more than 140 seconds. [ 862.335928] Not tainted 4.18.0-rc5+ #132 [ 862.340511] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 862.348490] syz-executor592 D24240 4468 4464 0x00000000 [ 862.354131] Call Trace: [ 862.356717] __schedule+0x87c/0x1ed0 [ 862.360437] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 862.365035] ? __sched_text_start+0x8/0x8 [ 862.369189] ? _raw_spin_unlock+0x22/0x30 [ 862.373339] ? __queue_work+0x68d/0x1410 [ 862.377405] ? kasan_check_read+0x11/0x20 [ 862.381554] ? flush_rcu_work+0x90/0x90 [ 862.385528] ? kasan_check_write+0x14/0x20 [ 862.389768] ? do_raw_spin_lock+0xc1/0x200 [ 862.394796] ? trace_hardirqs_off+0xd/0x10 [ 862.399030] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 862.404143] ? debug_check_no_obj_freed+0x30b/0x595 [ 862.409160] schedule+0xfb/0x450 [ 862.412529] ? padata_do_parallel+0x5da/0x8d0 [ 862.417027] ? __schedule+0x1ed0/0x1ed0 [ 862.421010] ? kasan_check_read+0x11/0x20 [ 862.425178] ? lock_acquire+0x1e4/0x540 [ 862.429158] ? wait_for_completion+0x428/0x8d0 [ 862.433743] schedule_timeout+0x1cc/0x260 [ 862.437895] ? usleep_range+0x1a0/0x1a0 [ 862.441879] ? do_raw_spin_unlock+0xa7/0x2f0 [ 862.446290] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 862.450880] ? kasan_check_write+0x14/0x20 [ 862.455116] ? do_raw_spin_lock+0xc1/0x200 [ 862.459352] wait_for_completion+0x430/0x8d0 [ 862.463763] ? wait_for_completion_interruptible+0x950/0x950 [ 862.469560] ? wake_up_q+0x100/0x100 [ 862.473275] ? pcrypt_aead_enc+0x190/0x190 [ 862.477508] ? sock_kmalloc+0x182/0x1f0 [ 862.481483] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 862.487023] ? pcrypt_aead_decrypt+0x370/0x460 [ 862.491611] aead_recvmsg+0x1544/0x1bb0 [ 862.495589] ? aead_release+0x50/0x50 [ 862.499395] ? aead_release+0x50/0x50 [ 862.503207] sock_recvmsg_nosec+0x8c/0xb0 [ 862.507364] ? __sock_tx_timestamp+0xd0/0xd0 [ 862.511780] ___sys_recvmsg+0x2b6/0x680 [ 862.515772] ? ___sys_sendmsg+0x930/0x930 [ 862.519931] ? alloc_pages_current+0x114/0x210 [ 862.524521] ? af_alg_sendmsg+0x93e/0x1190 [ 862.528757] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 862.534308] ? lock_acquire+0x1e4/0x540 [ 862.538286] ? __might_fault+0x12b/0x1e0 [ 862.542362] ? lock_downgrade+0x8f0/0x8f0 [ 862.546519] ? af_alg_sendpage+0xb50/0xb50 [ 862.550757] ? lock_release+0xa30/0xa30 [ 862.554730] ? check_same_owner+0x340/0x340 [ 862.559067] ? rcu_note_context_switch+0x730/0x730 [ 862.564008] ? check_same_owner+0x340/0x340 [ 862.568343] __sys_recvmmsg+0x301/0xba0 [ 862.572333] ? __ia32_sys_recvmsg+0xb0/0xb0 [ 862.576657] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 862.582203] ? __vfs_write+0x11f/0x9f0 [ 862.586089] ? fsnotify+0xbb4/0x14e0 [ 862.589804] ? fsnotify_first_mark+0x350/0x350 [ 862.594379] ? __fsnotify_parent+0xcc/0x420 [ 862.598700] ? __sys_accept4+0x5ad/0x8a0 [ 862.602768] ? fsnotify+0x14e0/0x14e0 [ 862.606576] ? vfs_write+0x2a8/0x560 [ 862.610285] do_sys_recvmmsg+0x181/0x1a0 [ 862.614346] ? __sys_recvmmsg+0xba0/0xba0 [ 862.618486] ? __ia32_sys_read+0xb0/0xb0 [ 862.622555] ? syscall_slow_exit_work+0x500/0x500 [ 862.627399] __x64_sys_recvmmsg+0xbe/0x150 [ 862.631632] do_syscall_64+0x1b9/0x820 [ 862.635514] ? syscall_return_slowpath+0x5e0/0x5e0 [ 862.640441] ? syscall_return_slowpath+0x31d/0x5e0 [ 862.645370] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 862.650380] ? prepare_exit_to_usermode+0x291/0x3b0 [ 862.655401] ? perf_trace_sys_enter+0xb10/0xb10 [ 862.660072] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 862.664913] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 862.670104] RIP: 0033:0x4407b9 [ 862.673285] Code: Bad RIP value. [ 862.676656] RSP: 002b:00007ffe6735bf58 EFLAGS: 00000207 ORIG_RAX: 000000000000012b [ 862.684362] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 00000000004407b9 [ 862.691636] RDX: 0000000000000002 RSI: 0000000020003340 RDI: 0000000000000019 [ 862.698909] RBP: 00000000006cb018 R08: 0000000000000000 R09: 00000000004002c8 [ 862.706183] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401c40 [ 862.713469] R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000 [ 862.720753] INFO: task syz-executor592:4469 blocked for more than 140 seconds. [ 862.728106] Not tainted 4.18.0-rc5+ #132 [ 862.732684] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 862.740650] syz-executor592 D24592 4469 4464 0x00000000 [ 862.746280] Call Trace: [ 862.748863] __schedule+0x87c/0x1ed0 [ 862.752578] ? __sched_text_start+0x8/0x8 [ 862.756735] ? aead_recvmsg+0xac4/0x1bb0 [ 862.760797] ? sock_recvmsg_nosec+0x8c/0xb0 [ 862.765120] ? __sys_recvmmsg+0x301/0xba0 [ 862.769269] ? do_sys_recvmmsg+0x181/0x1a0 [ 862.773500] ? __x64_sys_recvmmsg+0xbe/0x150 [ 862.777906] ? do_syscall_64+0x1b9/0x820 [ 862.781960] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 862.787329] ? kasan_check_read+0x11/0x20 [ 862.791483] ? do_raw_spin_unlock+0xa7/0x2f0 [ 862.795887] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 862.800464] ? kasan_check_write+0x14/0x20 [ 862.804701] ? do_raw_spin_lock+0xc1/0x200 [ 862.808946] ? trace_hardirqs_off+0xd/0x10 [ 862.813183] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 862.818286] ? debug_check_no_obj_freed+0x30b/0x595 [ 862.823306] schedule+0xfb/0x450 [ 862.826670] ? padata_do_parallel+0x5da/0x8d0 [ 862.831168] ? __schedule+0x1ed0/0x1ed0 [ 862.835138] ? kasan_check_read+0x11/0x20 [ 862.839286] ? do_raw_spin_unlock+0xa7/0x2f0 [ 862.843693] ? lock_acquire+0x1e4/0x540 [ 862.847665] ? wait_for_completion+0x428/0x8d0 [ 862.852243] schedule_timeout+0x1cc/0x260 [ 862.856389] ? usleep_range+0x1a0/0x1a0 [ 862.860355] ? do_raw_spin_unlock+0xa7/0x2f0 [ 862.864760] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 862.869335] ? kasan_check_write+0x14/0x20 [ 862.873569] ? do_raw_spin_lock+0xc1/0x200 [ 862.877799] wait_for_completion+0x430/0x8d0 [ 862.882209] ? wait_for_completion_interruptible+0x950/0x950 [ 862.888004] ? wake_up_q+0x100/0x100 [ 862.891727] ? pcrypt_aead_enc+0x190/0x190 [ 862.895961] ? sock_kmalloc+0x182/0x1f0 [ 862.899937] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 862.905475] ? pcrypt_aead_decrypt+0x370/0x460 [ 862.910063] aead_recvmsg+0x1544/0x1bb0 [ 862.914040] ? aead_release+0x50/0x50 [ 862.917840] ? aead_release+0x50/0x50 [ 862.921643] sock_recvmsg_nosec+0x8c/0xb0 [ 862.925798] ? __sock_tx_timestamp+0xd0/0xd0 [ 862.930213] ___sys_recvmsg+0x2b6/0x680 [ 862.934191] ? ___sys_sendmsg+0x930/0x930 [ 862.938342] ? alloc_pages_current+0x114/0x210 [ 862.942933] ? af_alg_sendmsg+0x93e/0x1190 [ 862.947172] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 862.952711] ? lock_acquire+0x1e4/0x540 [ 862.956689] ? __might_fault+0x12b/0x1e0 [ 862.960750] ? lock_downgrade+0x8f0/0x8f0 [ 862.964907] ? af_alg_sendpage+0xb50/0xb50 [ 862.969143] ? lock_release+0xa30/0xa30 [ 862.973125] ? check_same_owner+0x340/0x340 [ 862.977458] ? rcu_note_context_switch+0x730/0x730 [ 862.982400] ? check_same_owner+0x340/0x340 [ 862.986725] __sys_recvmmsg+0x301/0xba0 [ 862.990706] ? __ia32_sys_recvmsg+0xb0/0xb0 [ 862.995030] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 863.000577] ? __vfs_write+0x11f/0x9f0 [ 863.004465] ? fsnotify+0xbb4/0x14e0 [ 863.008180] ? fsnotify_first_mark+0x350/0x350 [ 863.012770] ? __fsnotify_parent+0xcc/0x420 [ 863.017104] ? __sys_accept4+0x5ad/0x8a0 [ 863.021173] ? fsnotify+0x14e0/0x14e0 [ 863.024977] ? vfs_write+0x2a8/0x560 [ 863.028693] do_sys_recvmmsg+0x181/0x1a0 [ 863.032764] ? __sys_recvmmsg+0xba0/0xba0 [ 863.036910] ? __ia32_sys_read+0xb0/0xb0 [ 863.040972] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 863.045553] __x64_sys_recvmmsg+0xbe/0x150 [ 863.049797] do_syscall_64+0x1b9/0x820 [ 863.053681] ? syscall_return_slowpath+0x5e0/0x5e0 [ 863.058612] ? syscall_return_slowpath+0x31d/0x5e0 [ 863.063547] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 863.068563] ? prepare_exit_to_usermode+0x291/0x3b0 [ 863.073576] ? perf_trace_sys_enter+0xb10/0xb10 [ 863.078246] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 863.083087] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 863.088284] RIP: 0033:0x4407b9 [ 863.091464] Code: Bad RIP value. [ 863.094845] RSP: 002b:00007ffe6735bf58 EFLAGS: 00000207 ORIG_RAX: 000000000000012b [ 863.102554] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 00000000004407b9 [ 863.109833] RDX: 0000000000000002 RSI: 0000000020003340 RDI: 0000000000000010 [ 863.117100] RBP: 00000000006cb018 R08: 0000000000000000 R09: 00000000004002c8 [ 863.124384] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401c40 [ 863.131655] R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000 [ 863.138940] INFO: task syz-executor592:4470 blocked for more than 140 seconds. [ 863.146298] Not tainted 4.18.0-rc5+ #132 [ 863.150877] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 863.158842] syz-executor592 D24592 4470 4464 0x00000000 [ 863.164478] Call Trace: [ 863.167077] __schedule+0x87c/0x1ed0 [ 863.170800] ? __sched_text_start+0x8/0x8 [ 863.174947] ? aead_recvmsg+0xac4/0x1bb0 [ 863.179021] ? sock_recvmsg_nosec+0x8c/0xb0 [ 863.183342] ? __sys_recvmmsg+0x301/0xba0 [ 863.187494] ? do_sys_recvmmsg+0x181/0x1a0 [ 863.191732] ? __x64_sys_recvmmsg+0xbe/0x150 [ 863.196141] ? do_syscall_64+0x1b9/0x820 [ 863.200196] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 863.205564] ? kasan_check_read+0x11/0x20 [ 863.209707] ? do_raw_spin_unlock+0xa7/0x2f0 [ 863.214115] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 863.218699] ? kasan_check_write+0x14/0x20 [ 863.222932] ? do_raw_spin_lock+0xc1/0x200 [ 863.227165] ? trace_hardirqs_off+0xd/0x10 [ 863.231419] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 863.236524] ? debug_check_no_obj_freed+0x30b/0x595 [ 863.241545] schedule+0xfb/0x450 [ 863.244912] ? padata_do_parallel+0x5da/0x8d0 [ 863.249410] ? __schedule+0x1ed0/0x1ed0 [ 863.253380] ? kasan_check_read+0x11/0x20 [ 863.257532] ? do_raw_spin_unlock+0xa7/0x2f0 [ 863.261939] ? lock_acquire+0x1e4/0x540 [ 863.265914] ? wait_for_completion+0x428/0x8d0 [ 863.270497] schedule_timeout+0x1cc/0x260 [ 863.274652] ? usleep_range+0x1a0/0x1a0 [ 863.278626] ? do_raw_spin_unlock+0xa7/0x2f0 [ 863.283419] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 863.287998] ? kasan_check_write+0x14/0x20 [ 863.292234] ? do_raw_spin_lock+0xc1/0x200 [ 863.296471] wait_for_completion+0x430/0x8d0 [ 863.300880] ? wait_for_completion_interruptible+0x950/0x950 [ 863.306673] ? wake_up_q+0x100/0x100 [ 863.310392] ? pcrypt_aead_enc+0x190/0x190 [ 863.314626] ? sock_kmalloc+0x182/0x1f0 [ 863.318602] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 863.324138] ? pcrypt_aead_decrypt+0x370/0x460 [ 863.328725] aead_recvmsg+0x1544/0x1bb0 [ 863.332700] ? aead_release+0x50/0x50 [ 863.336502] ? aead_release+0x50/0x50 [ 863.340301] sock_recvmsg_nosec+0x8c/0xb0 [ 863.344450] ? __sock_tx_timestamp+0xd0/0xd0 [ 863.348854] ___sys_recvmsg+0x2b6/0x680 [ 863.352841] ? ___sys_sendmsg+0x930/0x930 [ 863.356991] ? alloc_pages_current+0x114/0x210 [ 863.361594] ? af_alg_sendmsg+0x93e/0x1190 [ 863.365838] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 863.371380] ? lock_acquire+0x1e4/0x540 [ 863.375349] ? __might_fault+0x12b/0x1e0 [ 863.379408] ? lock_downgrade+0x8f0/0x8f0 [ 863.383551] ? af_alg_sendpage+0xb50/0xb50 [ 863.387798] ? lock_release+0xa30/0xa30 [ 863.391770] ? check_same_owner+0x340/0x340 [ 863.396104] ? rcu_note_context_switch+0x730/0x730 [ 863.401038] ? check_same_owner+0x340/0x340 [ 863.405358] __sys_recvmmsg+0x301/0xba0 [ 863.409331] ? __ia32_sys_recvmsg+0xb0/0xb0 [ 863.413651] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 863.419182] ? __vfs_write+0x11f/0x9f0 [ 863.423070] ? fsnotify+0xbb4/0x14e0 [ 863.426781] ? fsnotify_first_mark+0x350/0x350 [ 863.431361] ? __fsnotify_parent+0xcc/0x420 [ 863.435673] ? __sys_accept4+0x5ad/0x8a0 [ 863.439732] ? fsnotify+0x14e0/0x14e0 [ 863.443538] ? vfs_write+0x2a8/0x560 [ 863.447258] do_sys_recvmmsg+0x181/0x1a0 [ 863.451352] ? __sys_recvmmsg+0xba0/0xba0 [ 863.455517] ? __ia32_sys_read+0xb0/0xb0 [ 863.459573] ? syscall_slow_exit_work+0x500/0x500 [ 863.464420] __x64_sys_recvmmsg+0xbe/0x150 [ 863.468651] do_syscall_64+0x1b9/0x820 [ 863.472536] ? syscall_slow_exit_work+0x500/0x500 [ 863.477373] ? syscall_return_slowpath+0x5e0/0x5e0 [ 863.482301] ? syscall_return_slowpath+0x31d/0x5e0 [ 863.487231] ? prepare_exit_to_usermode+0x291/0x3b0 [ 863.492254] ? perf_trace_sys_enter+0xb10/0xb10 [ 863.496923] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 863.501777] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 863.506963] RIP: 0033:0x4407b9 [ 863.510151] Code: Bad RIP value. [ 863.513525] RSP: 002b:00007ffe6735bf58 EFLAGS: 00000207 ORIG_RAX: 000000000000012b [ 863.521240] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 00000000004407b9 [ 863.528520] RDX: 0000000000000002 RSI: 0000000020003340 RDI: 0000000000000013 [ 863.535802] RBP: 00000000006cb018 R08: 0000000000000000 R09: 00000000004002c8 [ 863.543081] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401c40 [ 863.550363] R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000 [ 863.557639] INFO: task syz-executor592:4471 blocked for more than 140 seconds. [ 863.565007] Not tainted 4.18.0-rc5+ #132 [ 863.569589] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 863.577565] syz-executor592 D24032 4471 4464 0x00000000 [ 863.583193] Call Trace: [ 863.585791] __schedule+0x87c/0x1ed0 [ 863.589507] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 863.594121] ? __sched_text_start+0x8/0x8 [ 863.598272] ? _raw_spin_unlock+0x22/0x30 [ 863.602430] ? __queue_work+0x68d/0x1410 [ 863.606508] ? kasan_check_read+0x11/0x20 [ 863.610663] ? flush_rcu_work+0x90/0x90 [ 863.614632] ? kasan_check_write+0x14/0x20 [ 863.618868] ? do_raw_spin_lock+0xc1/0x200 [ 863.623122] ? trace_hardirqs_off+0xd/0x10 [ 863.627364] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 863.632467] ? debug_check_no_obj_freed+0x30b/0x595 [ 863.637497] schedule+0xfb/0x450 [ 863.640860] ? padata_do_parallel+0x5da/0x8d0 [ 863.645360] ? __schedule+0x1ed0/0x1ed0 [ 863.649328] ? kasan_check_read+0x11/0x20 [ 863.653477] ? lock_acquire+0x1e4/0x540 [ 863.657448] ? wait_for_completion+0x428/0x8d0 [ 863.662049] schedule_timeout+0x1cc/0x260 [ 863.666192] ? usleep_range+0x1a0/0x1a0 [ 863.670170] ? do_raw_spin_unlock+0xa7/0x2f0 [ 863.674577] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 863.679163] ? kasan_check_write+0x14/0x20 [ 863.683396] ? do_raw_spin_lock+0xc1/0x200 [ 863.687635] wait_for_completion+0x430/0x8d0 [ 863.692043] ? wait_for_completion_interruptible+0x950/0x950 [ 863.697845] ? wake_up_q+0x100/0x100 [ 863.701557] ? pcrypt_aead_enc+0x190/0x190 [ 863.705800] ? sock_kmalloc+0x182/0x1f0 [ 863.709779] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 863.715331] ? pcrypt_aead_decrypt+0x370/0x460 [ 863.719940] aead_recvmsg+0x1544/0x1bb0 [ 863.723930] ? aead_release+0x50/0x50 [ 863.727751] ? aead_release+0x50/0x50 [ 863.731557] sock_recvmsg_nosec+0x8c/0xb0 [ 863.735701] ? __sock_tx_timestamp+0xd0/0xd0 [ 863.740114] ___sys_recvmsg+0x2b6/0x680 [ 863.744086] ? ___sys_sendmsg+0x930/0x930 [ 863.748236] ? alloc_pages_current+0x114/0x210 [ 863.752829] ? af_alg_sendmsg+0x93e/0x1190 [ 863.757067] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 863.762617] ? lock_acquire+0x1e4/0x540 [ 863.766593] ? __might_fault+0x12b/0x1e0 [ 863.770652] ? lock_downgrade+0x8f0/0x8f0 [ 863.774802] ? af_alg_sendpage+0xb50/0xb50 [ 863.779033] ? lock_release+0xa30/0xa30 [ 863.783026] ? check_same_owner+0x340/0x340 [ 863.787351] ? rcu_note_context_switch+0x730/0x730 [ 863.792302] ? check_same_owner+0x340/0x340 [ 863.796623] __sys_recvmmsg+0x301/0xba0 [ 863.800600] ? __ia32_sys_recvmsg+0xb0/0xb0 [ 863.804918] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 863.810455] ? __vfs_write+0x11f/0x9f0 [ 863.814339] ? fsnotify+0xbb4/0x14e0 [ 863.818058] ? fsnotify_first_mark+0x350/0x350 [ 863.822642] ? __fsnotify_parent+0xcc/0x420 [ 863.826962] ? __sys_accept4+0x5ad/0x8a0 [ 863.831026] ? fsnotify+0x14e0/0x14e0 [ 863.834844] ? vfs_write+0x2a8/0x560 [ 863.838557] do_sys_recvmmsg+0x181/0x1a0 [ 863.842624] ? __sys_recvmmsg+0xba0/0xba0 [ 863.846773] ? __ia32_sys_read+0xb0/0xb0 [ 863.850836] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 863.855437] __x64_sys_recvmmsg+0xbe/0x150 [ 863.859677] do_syscall_64+0x1b9/0x820 [ 863.863560] ? syscall_return_slowpath+0x5e0/0x5e0 [ 863.868504] ? syscall_return_slowpath+0x31d/0x5e0 [ 863.873429] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 863.878446] ? prepare_exit_to_usermode+0x291/0x3b0 [ 863.883456] ? perf_trace_sys_enter+0xb10/0xb10 [ 863.888126] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 863.892971] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 863.898161] RIP: 0033:0x4407b9 [ 863.901339] Code: Bad RIP value. [ 863.904709] RSP: 002b:00007ffe6735bf58 EFLAGS: 00000207 ORIG_RAX: 000000000000012b [ 863.912415] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 00000000004407b9 [ 863.919688] RDX: 0000000000000002 RSI: 0000000020003340 RDI: 0000000000000016 [ 863.926956] RBP: 00000000006cb018 R08: 0000000000000000 R09: 00000000004002c8 [ 863.934229] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401c40 [ 863.941494] R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000 [ 863.948783] INFO: task syz-executor592:4472 blocked for more than 140 seconds. [ 863.956136] Not tainted 4.18.0-rc5+ #132 [ 863.960710] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 863.968672] syz-executor592 D24480 4472 4464 0x00000000 [ 863.974302] Call Trace: [ 863.976893] __schedule+0x87c/0x1ed0 [ 863.980647] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 863.985260] ? __sched_text_start+0x8/0x8 [ 863.989428] ? _raw_spin_unlock+0x22/0x30 [ 863.993600] ? __queue_work+0x68d/0x1410 [ 863.997674] ? kasan_check_read+0x11/0x20 [ 864.001836] ? flush_rcu_work+0x90/0x90 [ 864.005827] ? kasan_check_write+0x14/0x20 [ 864.010074] ? do_raw_spin_lock+0xc1/0x200 [ 864.014327] ? trace_hardirqs_off+0xd/0x10 [ 864.018578] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 864.023695] ? debug_check_no_obj_freed+0x30b/0x595 [ 864.028723] schedule+0xfb/0x450 [ 864.032096] ? padata_do_parallel+0x5da/0x8d0 [ 864.036597] ? __schedule+0x1ed0/0x1ed0 [ 864.040584] ? kasan_check_read+0x11/0x20 [ 864.044741] ? do_raw_spin_unlock+0xa7/0x2f0 [ 864.049190] ? lock_acquire+0x1e4/0x540 [ 864.053177] ? wait_for_completion+0x428/0x8d0 [ 864.057766] schedule_timeout+0x1cc/0x260 [ 864.061920] ? usleep_range+0x1a0/0x1a0 [ 864.065899] ? do_raw_spin_unlock+0xa7/0x2f0 [ 864.070315] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 864.074914] ? kasan_check_write+0x14/0x20 [ 864.079163] ? do_raw_spin_lock+0xc1/0x200 [ 864.083413] wait_for_completion+0x430/0x8d0 [ 864.087834] ? wait_for_completion_interruptible+0x950/0x950 [ 864.093637] ? wake_up_q+0x100/0x100 [ 864.097370] ? pcrypt_aead_enc+0x190/0x190 [ 864.101616] ? sock_kmalloc+0x182/0x1f0 [ 864.105603] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 864.111155] ? pcrypt_aead_decrypt+0x370/0x460 [ 864.115751] aead_recvmsg+0x1544/0x1bb0 [ 864.119737] ? aead_release+0x50/0x50 [ 864.123551] ? aead_release+0x50/0x50 [ 864.127355] sock_recvmsg_nosec+0x8c/0xb0 [ 864.131510] ? __sock_tx_timestamp+0xd0/0xd0 [ 864.135923] ___sys_recvmsg+0x2b6/0x680 [ 864.139907] ? ___sys_sendmsg+0x930/0x930 [ 864.144061] ? alloc_pages_current+0x114/0x210 [ 864.148651] ? af_alg_sendmsg+0x93e/0x1190 [ 864.152900] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 864.158450] ? lock_acquire+0x1e4/0x540 [ 864.162439] ? __might_fault+0x12b/0x1e0 [ 864.166510] ? lock_downgrade+0x8f0/0x8f0 [ 864.170661] ? af_alg_sendpage+0xb50/0xb50 [ 864.174903] ? lock_release+0xa30/0xa30 [ 864.178882] ? check_same_owner+0x340/0x340 [ 864.183225] ? rcu_note_context_switch+0x730/0x730 [ 864.188161] ? check_same_owner+0x340/0x340 [ 864.192495] __sys_recvmmsg+0x301/0xba0 [ 864.196476] ? __ia32_sys_recvmsg+0xb0/0xb0 [ 864.200816] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 864.206357] ? __vfs_write+0x11f/0x9f0 [ 864.210251] ? fsnotify+0xbb4/0x14e0 [ 864.213969] ? fsnotify_first_mark+0x350/0x350 [ 864.218554] ? __fsnotify_parent+0xcc/0x420 [ 864.222882] ? __sys_accept4+0x5ad/0x8a0 [ 864.226949] ? fsnotify+0x14e0/0x14e0 [ 864.230759] ? vfs_write+0x2a8/0x560 [ 864.234484] do_sys_recvmmsg+0x181/0x1a0 [ 864.238548] ? __sys_recvmmsg+0xba0/0xba0 [ 864.242705] ? __ia32_sys_read+0xb0/0xb0 [ 864.246773] ? syscall_slow_exit_work+0x500/0x500 [ 864.251627] __x64_sys_recvmmsg+0xbe/0x150 [ 864.255873] do_syscall_64+0x1b9/0x820 [ 864.259771] ? syscall_return_slowpath+0x5e0/0x5e0 [ 864.264706] ? syscall_return_slowpath+0x31d/0x5e0 [ 864.269647] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 864.274670] ? prepare_exit_to_usermode+0x291/0x3b0 [ 864.279691] ? perf_trace_sys_enter+0xb10/0xb10 [ 864.284366] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 864.289218] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 864.294407] RIP: 0033:0x4407b9 [ 864.297595] Code: Bad RIP value. [ 864.300969] RSP: 002b:00007ffe6735bf58 EFLAGS: 00000207 ORIG_RAX: 000000000000012b [ 864.308684] RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 00000000004407b9 [ 864.315956] RDX: 0000000000000002 RSI: 0000000020003340 RDI: 0000000000000016 [ 864.323231] RBP: 00000000006cb018 R08: 0000000000000000 R09: 00000000004002c8 [ 864.330502] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401c40 [ 864.337774] R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000 [ 864.345059] INFO: lockdep is turned off. [ 864.349118] NMI backtrace for cpu 0 [ 864.352762] CPU: 0 PID: 900 Comm: khungtaskd Not tainted 4.18.0-rc5+ #132 [ 864.359842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 864.369169] Call Trace: [ 864.371803] dump_stack+0x1c9/0x2b4 [ 864.375410] ? dump_stack_print_info.cold.2+0x52/0x52 [ 864.380576] ? vprintk_default+0x28/0x30 [ 864.384622] nmi_cpu_backtrace.cold.5+0x19/0xce [ 864.389272] ? lapic_can_unplug_cpu.cold.28+0x3f/0x3f [ 864.394439] nmi_trigger_cpumask_backtrace+0x151/0x192 [ 864.399703] arch_trigger_cpumask_backtrace+0x14/0x20 [ 864.404870] watchdog+0x9c4/0xf80 [ 864.408305] ? reset_hung_task_detector+0xd0/0xd0 [ 864.413143] ? kasan_check_read+0x11/0x20 [ 864.417268] ? do_raw_spin_unlock+0xa7/0x2f0 [ 864.421653] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 864.426731] ? __kthread_parkme+0x58/0x1b0 [ 864.430941] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 864.435934] ? trace_hardirqs_on+0xd/0x10 [ 864.440059] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 864.445570] ? __kthread_parkme+0x106/0x1b0 [ 864.449867] kthread+0x345/0x410 [ 864.453211] ? reset_hung_task_detector+0xd0/0xd0 [ 864.458026] ? kthread_bind+0x40/0x40 [ 864.461799] ret_from_fork+0x3a/0x50 [ 864.465545] Sending NMI from CPU 0 to CPUs 1: [ 864.470079] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x6/0x10 [ 864.471073] Kernel panic - not syncing: hung_task: blocked tasks [ 864.483753] CPU: 0 PID: 900 Comm: khungtaskd Not tainted 4.18.0-rc5+ #132 [ 864.490653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 864.499982] Call Trace: [ 864.502554] dump_stack+0x1c9/0x2b4 [ 864.506160] ? dump_stack_print_info.cold.2+0x52/0x52 [ 864.511346] ? printk_safe_log_store+0x2f0/0x2f0 [ 864.516081] panic+0x238/0x4e7 [ 864.519253] ? add_taint.cold.5+0x16/0x16 [ 864.523381] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 864.528896] ? nmi_trigger_cpumask_backtrace+0x13a/0x192 [ 864.534324] ? printk_safe_flush+0xd7/0x130 [ 864.538625] watchdog+0x9d5/0xf80 [ 864.542059] ? reset_hung_task_detector+0xd0/0xd0 [ 864.546882] ? kasan_check_read+0x11/0x20 [ 864.551008] ? do_raw_spin_unlock+0xa7/0x2f0 [ 864.555400] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 864.560478] ? __kthread_parkme+0x58/0x1b0 [ 864.564689] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 864.569682] ? trace_hardirqs_on+0xd/0x10 [ 864.573807] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 864.579320] ? __kthread_parkme+0x106/0x1b0 [ 864.583618] kthread+0x345/0x410 [ 864.586961] ? reset_hung_task_detector+0xd0/0xd0 [ 864.591778] ? kthread_bind+0x40/0x40 [ 864.595554] ret_from_fork+0x3a/0x50 [ 864.599746] Dumping ftrace buffer: [ 864.603262] (ftrace buffer empty) [ 864.606949] Kernel Offset: disabled [ 864.610556] Rebooting in 86400 seconds..