[ 32.140731] audit: type=1800 audit(1556013213.795:33): pid=6958 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 [ 32.162769] audit: type=1800 audit(1556013213.795:34): pid=6958 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: [ 36.431219] random: sshd: uninitialized urandom read (32 bytes read) [ 36.952134] audit: type=1400 audit(1556013218.605:35): avc: denied { map } for pid=7135 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 [ 37.005462] random: sshd: uninitialized urandom read (32 bytes read) [ 37.624258] random: sshd: uninitialized urandom read (32 bytes read) [ 44.888269] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.1.24' (ECDSA) to the list of known hosts. [ 50.382262] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program [ 50.504837] audit: type=1400 audit(1556013232.155:36): avc: denied { map } for pid=7147 comm="syz-executor758" path="/root/syz-executor758322811" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 50.516501] memory commitment underflow [ 50.535702] audit: type=1400 audit(1556013232.155:37): avc: denied { map } for pid=7154 comm="syz-executor758" path="/dev/ashmem" dev="devtmpfs" ino=15697 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:device_t:s0 tclass=chr_file permissive=1 [ 50.535901] ------------[ cut here ]------------ [ 50.569410] WARNING: CPU: 0 PID: 7155 at mm/util.c:604 __vm_enough_memory.cold+0x18/0x58 [ 50.577612] Kernel panic - not syncing: panic_on_warn set ... [ 50.577612] [ 50.584961] CPU: 0 PID: 7155 Comm: syz-executor758 Not tainted 4.14.113 #3 [ 50.591949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.601280] Call Trace: [ 50.603867] dump_stack+0x138/0x19c [ 50.607486] panic+0x1f2/0x438 [ 50.610660] ? add_taint.cold+0x16/0x16 [ 50.614614] ? __vm_enough_memory.cold+0x18/0x58 [ 50.619347] ? __vm_enough_memory.cold+0x18/0x58 [ 50.624079] __warn.cold+0x2f/0x34 [ 50.627600] ? ist_end_non_atomic+0x10/0x10 [ 50.631899] ? __vm_enough_memory.cold+0x18/0x58 [ 50.636628] report_bug+0x216/0x254 [ 50.640230] do_error_trap+0x1bb/0x310 [ 50.644091] ? math_error+0x360/0x360 [ 50.647875] ? vprintk_emit+0x171/0x600 [ 50.651832] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.656652] do_invalid_op+0x1b/0x20 [ 50.660344] invalid_op+0x1b/0x40 [ 50.663773] RIP: 0010:__vm_enough_memory.cold+0x18/0x58 [ 50.669118] RSP: 0018:ffff88809fe77ad8 EFLAGS: 00010286 [ 50.674457] RAX: 000000000000001b RBX: fff8000000000000 RCX: 0000000000000000 [ 50.681706] RDX: 0000000000000000 RSI: ffff888082630e68 RDI: ffffed1013fcef51 [ 50.688962] RBP: ffff88809fe77b10 R08: 000000000000001b R09: ffff888082630e88 [ 50.696210] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 50.703466] R13: ffff888087124640 R14: ffffffff878035e0 R15: fff800000000d3f2 [ 50.710718] ? __vm_enough_memory.cold+0x18/0x58 [ 50.715461] security_vm_enough_memory_mm+0x99/0xc0 [ 50.720474] __shmem_file_setup.part.0+0x262/0x400 [ 50.725384] ? shmem_fill_super+0x8c0/0x8c0 [ 50.729704] ? mmap_region+0x602/0x1030 [ 50.733655] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 50.739081] shmem_file_setup+0x50/0x70 [ 50.743032] ashmem_mmap+0x327/0x490 [ 50.746728] mmap_region+0x858/0x1030 [ 50.750516] do_mmap+0x5b8/0xcd0 [ 50.753858] vm_mmap_pgoff+0x17a/0x1d0 [ 50.757721] ? vma_is_stack_for_current+0xa0/0xa0 [ 50.762540] ? __fget+0x237/0x370 [ 50.765973] SyS_mmap_pgoff+0x3ca/0x520 [ 50.769928] ? find_mergeable_anon_vma+0x2c0/0x2c0 [ 50.774838] ? do_syscall_64+0x53/0x630 [ 50.778792] ? align_vdso_addr+0x60/0x60 [ 50.782828] SyS_mmap+0x16/0x20 [ 50.786147] do_syscall_64+0x1eb/0x630 [ 50.790021] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.794872] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 50.800051] RIP: 0033:0x441289 [ 50.803301] RSP: 002b:00007ffea8a14b78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 50.811000] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441289 [ 50.818248] RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000020ffc000 [ 50.825496] RBP: 00000000006cb018 R08: 0000000000000003 R09: 0000000000000000 [ 50.832807] R10: 0080000000000012 R11: 0000000000000246 R12: 0000000000402000 [ 50.840080] R13: 0000000000402090 R14: 0000000000000000 R15: 0000000000000000 [ 50.848096] Kernel Offset: disabled [ 50.851777] Rebooting in 86400 seconds..