[ 54.046854] audit: type=1800 audit(1541803205.101:26): pid=6030 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 54.066515] audit: type=1800 audit(1541803205.121:27): pid=6030 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 54.086123] audit: type=1800 audit(1541803205.131:28): pid=6030 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 55.975533] audit: type=1800 audit(1541803207.041:29): pid=6030 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.23' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 76.444315] oom_reaper: reaped process 6190 (syz-executor109), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 76.487432] oom_reaper: reaped process 6193 (syz-executor109), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 76.553221] oom_reaper: reaped process 6192 (syz-executor109), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 76.584326] oom_reaper: reaped process 6184 (syz-executor109), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 76.633518] oom_reaper: reaped process 6191 (syz-executor109), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 76.683255] oom_reaper: reaped process 6189 (syz-executor109), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 76.822658] syz-executor109 invoked oom-killer: gfp_mask=0x6082c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), nodemask=(null), order=0, oom_score_adj=0 [ 76.837200] syz-executor109 cpuset=/ mems_allowed=0 [ 76.842419] CPU: 1 PID: 6193 Comm: syz-executor109 Not tainted 4.19.0+ #81 [ 76.849471] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.858870] Call Trace: [ 76.861485] ================================================================== [ 76.868868] BUG: KMSAN: uninit-value in show_trace_log_lvl+0x53f/0x11e0 [ 76.875643] CPU: 1 PID: 6193 Comm: syz-executor109 Not tainted 4.19.0+ #81 [ 76.882657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.892018] Call Trace: [ 76.894629] dump_stack+0x419/0x480 [ 76.898274] ? _raw_spin_lock_irqsave+0x237/0x340 [ 76.903149] ? show_trace_log_lvl+0x53f/0x11e0 [ 76.907762] kmsan_report+0x19f/0x300 [ 76.911586] __msan_warning+0x76/0xd0 [ 76.915403] ? stack_type_name+0x14/0xe0 [ 76.919484] show_trace_log_lvl+0x53f/0x11e0 [ 76.923925] ? dump_stack+0x32d/0x480 [ 76.927748] show_stack+0x12e/0x170 [ 76.931388] dump_stack+0x32d/0x480 [ 76.935033] ? pr_cont_kernfs_name+0x1ee/0x230 [ 76.939647] dump_header+0x405/0x1e70 [ 76.943463] ? __msan_get_context_state+0x9/0x30 [ 76.948238] ? INIT_INT+0xc/0x30 [ 76.951627] ? do_raw_spin_trylock+0x2aa/0x3d0 [ 76.956234] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 76.961707] ? __msan_get_context_state+0x9/0x30 [ 76.966493] oom_kill_process+0x435/0x1620 [ 76.970754] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 76.976140] ? oom_evaluate_task+0x6b2/0xef0 [ 76.980580] out_of_memory+0x18fb/0x1fb0 [ 76.984683] __alloc_pages_nodemask+0x5599/0x6640 [ 76.989605] alloc_pages_current+0x584/0x7e0 [ 76.994047] __vmalloc_node_range+0x879/0x12a0 [ 76.998675] vzalloc+0xd8/0xf0 [ 77.001885] ? packet_set_ring+0xe7f/0x3d10 [ 77.006227] packet_set_ring+0xe7f/0x3d10 [ 77.010425] packet_setsockopt+0x145e/0x6830 [ 77.014850] ? aa_sock_opt_perm+0x132/0x2b0 [ 77.019205] ? packet_ioctl+0x720/0x720 [ 77.023194] __sys_setsockopt+0x493/0x540 [ 77.027370] __se_sys_setsockopt+0xdd/0x100 [ 77.031714] __x64_sys_setsockopt+0x62/0x80 [ 77.036061] do_syscall_64+0xcf/0x110 [ 77.039888] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 77.045089] RIP: 0033:0x440e79 [ 77.048314] Code: Bad RIP value. [ 77.051687] RSP: 002b:00007ffe51f27378 EFLAGS: 00000213 ORIG_RAX: 0000000000000036 [ 77.059406] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440e79 [ 77.066691] RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000003 [ 77.073976] RBP: 0000000000000000 R08: 0000000000000616 R09: 00000000004002c8 [ 77.081262] R10: 0000000020006a80 R11: 0000000000000213 R12: 0000000000401d10 [ 77.088545] R13: 0000000000401da0 R14: 0000000000000000 R15: 0000000000000000 [ 77.095834] [ 77.097464] Local variable description: ----state@show_trace_log_lvl [ 77.103952] Variable was created at: [ 77.107689] show_trace_log_lvl+0xb3/0x11e0 [ 77.112017] show_stack+0x12e/0x170 [ 77.115647] ================================================================== [ 77.123004] Disabling lock debugging due to kernel taint [ 77.128452] Kernel panic - not syncing: panic_on_warn set ... [ 77.128452] [ 77.135827] CPU: 1 PID: 6193 Comm: syz-executor109 Tainted: G B 4.19.0+ #81 [ 77.144213] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.153639] Call Trace: [ 77.156217] dump_stack+0x419/0x480 [ 77.159836] panic+0x57e/0xb28 [ 77.163037] kmsan_report+0x300/0x300 [ 77.166829] __msan_warning+0x76/0xd0 [ 77.170628] ? stack_type_name+0x14/0xe0 [ 77.174675] show_trace_log_lvl+0x53f/0x11e0 [ 77.179083] ? dump_stack+0x32d/0x480 [ 77.182880] show_stack+0x12e/0x170 [ 77.186496] dump_stack+0x32d/0x480 [ 77.190120] ? pr_cont_kernfs_name+0x1ee/0x230 [ 77.194698] dump_header+0x405/0x1e70 [ 77.198491] ? __msan_get_context_state+0x9/0x30 [ 77.203236] ? INIT_INT+0xc/0x30 [ 77.206586] ? do_raw_spin_trylock+0x2aa/0x3d0 [ 77.211155] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 77.216596] ? __msan_get_context_state+0x9/0x30 [ 77.221345] oom_kill_process+0x435/0x1620 [ 77.225571] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 77.230923] ? oom_evaluate_task+0x6b2/0xef0 [ 77.235321] out_of_memory+0x18fb/0x1fb0 [ 77.239376] __alloc_pages_nodemask+0x5599/0x6640 [ 77.244237] alloc_pages_current+0x584/0x7e0 [ 77.248640] __vmalloc_node_range+0x879/0x12a0 [ 77.253225] vzalloc+0xd8/0xf0 [ 77.256406] ? packet_set_ring+0xe7f/0x3d10 [ 77.260719] packet_set_ring+0xe7f/0x3d10 [ 77.264874] packet_setsockopt+0x145e/0x6830 [ 77.269272] ? aa_sock_opt_perm+0x132/0x2b0 [ 77.273588] ? packet_ioctl+0x720/0x720 [ 77.277548] __sys_setsockopt+0x493/0x540 [ 77.281686] __se_sys_setsockopt+0xdd/0x100 [ 77.285996] __x64_sys_setsockopt+0x62/0x80 [ 77.290301] do_syscall_64+0xcf/0x110 [ 77.294091] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 77.299269] RIP: 0033:0x440e79 [ 77.302876] Code: Bad RIP value. [ 77.306229] RSP: 002b:00007ffe51f27378 EFLAGS: 00000213 ORIG_RAX: 0000000000000036 [ 77.313924] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440e79 [ 77.321177] RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000003 [ 77.328433] RBP: 0000000000000000 R08: 0000000000000616 R09: 00000000004002c8 [ 77.335686] R10: 0000000020006a80 R11: 0000000000000213 R12: 0000000000401d10 [ 77.342940] R13: 0000000000401da0 R14: 0000000000000000 R15: 0000000000000000 [ 77.351416] Kernel Offset: disabled [ 77.355047] Rebooting in 86400 seconds..