[ 33.244064] audit: type=1800 audit(1556349054.501:33): pid=6874 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 33.271057] audit: type=1800 audit(1556349054.501:34): pid=6874 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 35.832337] random: sshd: uninitialized urandom read (32 bytes read) [ 36.078764] audit: type=1400 audit(1556349057.331:35): avc: denied { map } for pid=7047 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 36.132201] random: sshd: uninitialized urandom read (32 bytes read) [ 36.718892] random: sshd: uninitialized urandom read (32 bytes read) [ 36.913680] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.131' (ECDSA) to the list of known hosts. [ 42.804813] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 42.932500] audit: type=1400 audit(1556349064.191:36): avc: denied { map } for pid=7059 comm="syz-executor958" path="/root/syz-executor958301522" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 42.937309] INFO: trying to register non-static key. [ 42.964559] the code is fine but needs lockdep annotation. [ 42.970165] turning off the locking correctness validator. [ 42.975777] CPU: 1 PID: 7059 Comm: syz-executor958 Not tainted 4.14.113 #3 [ 42.982793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.992155] Call Trace: [ 42.994734] dump_stack+0x138/0x19c [ 42.998360] register_lock_class+0x2fd/0x1730 [ 43.002836] ? cpuacct_charge+0x1db/0x360 [ 43.006962] ? find_held_lock+0x35/0x130 [ 43.011021] ? check_noncircular+0x20/0x20 [ 43.015235] __lock_acquire+0x147/0x45e0 [ 43.019275] ? save_trace+0x290/0x290 [ 43.023056] ? __lock_acquire+0x5f9/0x45e0 [ 43.027270] ? __lock_is_held+0xb6/0x140 [ 43.031311] ? trace_hardirqs_on+0x10/0x10 [ 43.035523] ? trace_hardirqs_on+0x10/0x10 [ 43.039735] ? save_trace+0x290/0x290 [ 43.043518] ? check_preemption_disabled+0x3c/0x250 [ 43.048513] ? finish_task_switch+0x178/0x660 [ 43.052990] ? find_held_lock+0x35/0x130 [ 43.057031] lock_acquire+0x16f/0x430 [ 43.060831] ? flush_work+0x84/0x730 [ 43.064529] flush_work+0xae/0x730 [ 43.068050] ? flush_work+0x84/0x730 [ 43.071749] ? insert_work+0x320/0x320 [ 43.075625] ? finish_task_switch+0x178/0x660 [ 43.080129] ? finish_task_switch+0x14d/0x660 [ 43.084611] ? __switch_to_asm+0x24/0x60 [ 43.088655] ? __switch_to_asm+0x30/0x60 [ 43.092697] ? __schedule+0x7c6/0x1cf0 [ 43.096570] ? mark_held_locks+0xb1/0x100 [ 43.100721] ? __cancel_work_timer+0x166/0x480 [ 43.105302] __cancel_work_timer+0x2f0/0x480 [ 43.109696] ? cancel_delayed_work+0x20/0x20 [ 43.114088] ? preempt_schedule+0x4b/0x60 [ 43.118236] ? smc_accept_dequeue+0x3b6/0x5e0 [ 43.122712] ? __local_bh_enable_ip+0x15e/0x1a0 [ 43.127363] cancel_work_sync+0x18/0x20 [ 43.131316] smc_close_active+0x6d2/0xc10 [ 43.135442] smc_release+0x45f/0x640 [ 43.139161] __sock_release+0xd3/0x2c0 [ 43.143032] ? __sock_release+0x2c0/0x2c0 [ 43.147176] sock_close+0x1b/0x30 [ 43.150705] __fput+0x277/0x7a0 [ 43.153988] ____fput+0x16/0x20 [ 43.157277] task_work_run+0x119/0x190 [ 43.161147] do_exit+0x7df/0x2c10 [ 43.164601] ? mm_update_next_owner+0x5d0/0x5d0 [ 43.169513] ? release_sock+0x14c/0x1c0 [ 43.173473] ? smc_listen+0x141/0x400 [ 43.177254] ? SyS_listen+0x186/0x230 [ 43.181042] do_group_exit+0x111/0x330 [ 43.184909] SyS_exit_group+0x1d/0x20 [ 43.188697] ? do_group_exit+0x330/0x330 [ 43.192918] do_syscall_64+0x1eb/0x630 [ 43.196789] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.201618] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.206788] RIP: 0033:0x43ed88 [ 43.209954] RSP: 002b:00007ffc4d0d5968 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 43.217729] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ed88 [ 43.224989] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 43.232240] RBP: 0