[ 32.295397] audit: type=1800 audit(1556181347.765:33): pid=6797 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 [ 32.322347] audit: type=1800 audit(1556181347.765:34): pid=6797 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: [ 36.541362] random: sshd: uninitialized urandom read (32 bytes read) [ 37.008219] audit: type=1400 audit(1556181352.475:35): avc: denied { map } for pid=6971 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 [ 37.062091] random: sshd: uninitialized urandom read (32 bytes read) [ 37.603807] random: sshd: uninitialized urandom read (32 bytes read) [ 37.789247] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.59' (ECDSA) to the list of known hosts. [ 43.371807] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program [ 43.490316] audit: type=1400 audit(1556181358.965:36): avc: denied { map } for pid=6983 comm="syz-executor258" path="/root/syz-executor258820704" 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 [ 43.501258] memory commitment underflow [ 43.517685] ------------[ cut here ]------------ executing program executing program executing program executing program [ 43.523077] audit: type=1400 audit(1556181358.965:37): avc: denied { map } for pid=6991 comm="syz-executor258" path="/dev/ashmem" dev="devtmpfs" ino=13241 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:device_t:s0 tclass=chr_file permissive=1 [ 43.526573] WARNING: CPU: 0 PID: 6992 at mm/util.c:604 __vm_enough_memory.cold+0x18/0x58 [ 43.526579] Kernel panic - not syncing: panic_on_warn set ... [ 43.526579] [ 43.526587] CPU: 0 PID: 6992 Comm: syz-executor258 Not tainted 4.14.113 #3 [ 43.526594] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.583336] Call Trace: [ 43.585914] dump_stack+0x138/0x19c [ 43.589529] panic+0x1f2/0x438 [ 43.592787] ? add_taint.cold+0x16/0x16 [ 43.596753] ? __vm_enough_memory.cold+0x18/0x58 [ 43.601498] ? __vm_enough_memory.cold+0x18/0x58 [ 43.606369] __warn.cold+0x2f/0x34 [ 43.609898] ? ist_end_non_atomic+0x10/0x10 [ 43.614203] ? __vm_enough_memory.cold+0x18/0x58 [ 43.618943] report_bug+0x216/0x254 [ 43.622563] do_error_trap+0x1bb/0x310 [ 43.626699] ? math_error+0x360/0x360 [ 43.630485] ? vprintk_emit+0x171/0x600 [ 43.634442] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.640081] do_invalid_op+0x1b/0x20 [ 43.643776] invalid_op+0x1b/0x40 [ 43.647220] RIP: 0010:__vm_enough_memory.cold+0x18/0x58 [ 43.652565] RSP: 0018:ffff88809605fad8 EFLAGS: 00010286 [ 43.657906] RAX: 000000000000001b RBX: fff8000000000000 RCX: 0000000000000000 [ 43.665156] RDX: 0000000000000000 RSI: ffff8880a60f0b28 RDI: ffffed1012c0bf51 [ 43.672408] RBP: ffff88809605fb10 R08: 000000000000001b R09: ffff8880a60f0b48 [ 43.679779] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 43.687050] R13: ffff888080e6f300 R14: ffffffff878035e0 R15: fff800000000d578 [ 43.694324] ? __vm_enough_memory.cold+0x18/0x58 [ 43.699795] security_vm_enough_memory_mm+0x99/0xc0 [ 43.704806] __shmem_file_setup.part.0+0x262/0x400 [ 43.709843] ? shmem_fill_super+0x8c0/0x8c0 [ 43.714194] ? mmap_region+0x602/0x1030 [ 43.718208] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 43.723751] shmem_file_setup+0x50/0x70 [ 43.727801] ashmem_mmap+0x327/0x490 [ 43.731909] mmap_region+0x858/0x1030 [ 43.735741] do_mmap+0x5b8/0xcd0 [ 43.739096] vm_mmap_pgoff+0x17a/0x1d0 [ 43.742970] ? vma_is_stack_for_current+0xa0/0xa0 [ 43.747792] ? __fget+0x237/0x370 [ 43.751233] SyS_mmap_pgoff+0x3ca/0x520 [ 43.755197] ? find_mergeable_anon_vma+0x2c0/0x2c0 [ 43.760128] ? do_syscall_64+0x53/0x630 [ 43.764087] ? align_vdso_addr+0x60/0x60 [ 43.768138] SyS_mmap+0x16/0x20 [ 43.771461] do_syscall_64+0x1eb/0x630 [ 43.775347] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.780180] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.785359] RIP: 0033:0x441289 [ 43.788541] RSP: 002b:00007ffceef35f88 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 43.796344] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441289 [ 43.803705] RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000020ffc000 [ 43.811071] RBP: 00000000006cb018 R08: 0000000000000003 R09: 0000000000000000 [ 43.818382] R10: 0080000000000012 R11: 0000000000000246 R12: 0000000000402000 [ 43.825789] R13: 0000000000402090 R14: 0000000000000000 R15: 0000000000000000 [ 43.834187] Kernel Offset: disabled [ 43.838051] Rebooting in 86400 seconds..