[ 45.311943][ T26] audit: type=1800 audit(1556018687.619:28): pid=8213 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. [ 46.164572][ T26] audit: type=1800 audit(1556018688.559:29): pid=8213 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 [ 46.185061][ T26] audit: type=1800 audit(1556018688.559:30): pid=8213 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 [....] startpar: service(s) returned failure: ssh ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.55' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 57.153898][ T8395] ------------[ cut here ]------------ [ 57.163301][ T8395] memory commitment underflow [ 57.163588][ T8395] WARNING: CPU: 1 PID: 8395 at mm/util.c:657 __vm_enough_memory+0x47b/0x5a0 [ 57.177117][ T8395] Kernel panic - not syncing: panic_on_warn set ... [ 57.183705][ T8395] CPU: 1 PID: 8395 Comm: syz-executor269 Not tainted 5.1.0-rc6 #79 [ 57.191583][ T8395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.201641][ T8395] Call Trace: [ 57.204991][ T8395] dump_stack+0x172/0x1f0 [ 57.209325][ T8395] ? __vm_enough_memory+0x3d0/0x5a0 [ 57.214712][ T8395] panic+0x2cb/0x65c [ 57.225059][ T8395] ? __warn_printk+0xf3/0xf3 [ 57.229663][ T8395] ? __vm_enough_memory+0x47b/0x5a0 [ 57.234861][ T8395] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.241086][ T8395] ? __warn.cold+0x5/0x45 [ 57.245505][ T8395] ? __warn+0xe8/0x1d0 [ 57.249572][ T8395] ? __vm_enough_memory+0x47b/0x5a0 [ 57.254758][ T8395] __warn.cold+0x20/0x45 [ 57.258997][ T8395] ? vprintk_emit+0x1ce/0x6d0 [ 57.263657][ T8395] ? __vm_enough_memory+0x47b/0x5a0 [ 57.275251][ T8395] report_bug+0x263/0x2b0 [ 57.279588][ T8395] do_error_trap+0x11b/0x200 [ 57.284171][ T8395] do_invalid_op+0x37/0x50 [ 57.288570][ T8395] ? __vm_enough_memory+0x47b/0x5a0 [ 57.293760][ T8395] invalid_op+0x14/0x20 [ 57.298010][ T8395] RIP: 0010:__vm_enough_memory+0x47b/0x5a0 [ 57.303811][ T8395] Code: e8 aa 79 da ff 0f b6 75 d0 40 84 f6 0f 85 50 fc ff ff e8 58 78 da ff 48 c7 c7 60 7c 72 87 c6 05 2f 73 c4 07 01 e8 03 26 ad ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 0f b6 14 [ 57.323430][ T8395] RSP: 0018:ffff888089c1fa60 EFLAGS: 00010282 [ 57.329483][ T8395] RAX: 0000000000000000 RBX: fff8000000000000 RCX: 0000000000000000 [ 57.337629][ T8395] RDX: 0000000000000000 RSI: ffffffff815afcf6 RDI: ffffed1011383f3e [ 57.345598][ T8395] RBP: ffff888089c1fa98 R08: ffff8880926ce100 R09: ffff8880926ce9c8 [ 57.353555][ T8395] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 57.361504][ T8395] R13: ffff88808b5a4080 R14: ffffffff88a2a580 R15: 0000000000000c67 [ 57.369470][ T8395] ? vprintk_func+0x86/0x189 [ 57.374168][ T8395] security_vm_enough_memory_mm+0xa0/0xd0 [ 57.379892][ T8395] __shmem_file_setup.part.0+0x194/0x2b0 [ 57.385524][ T8395] shmem_file_setup+0x66/0x90 [ 57.390205][ T8395] ashmem_mmap+0x35f/0x520 [ 57.394616][ T8395] mmap_region+0xc3a/0x1770 [ 57.399304][ T8395] ? __x64_sys_brk+0x760/0x760 [ 57.404060][ T8395] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 57.410292][ T8395] ? get_unmapped_area+0x295/0x3b0 [ 57.415391][ T8395] do_mmap+0x8e2/0x1080 [ 57.419532][ T8395] vm_mmap_pgoff+0x1c5/0x230 [ 57.424105][ T8395] ? vma_is_stack_for_current+0xd0/0xd0 [ 57.429644][ T8395] ? ksys_dup3+0x3e0/0x3e0 [ 57.434050][ T8395] ksys_mmap_pgoff+0x4aa/0x630 [ 57.438795][ T8395] ? find_mergeable_anon_vma+0x2e0/0x2e0 [ 57.444408][ T8395] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.450649][ T8395] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 57.456093][ T8395] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 57.461575][ T8395] ? do_syscall_64+0x26/0x610 [ 57.466240][ T8395] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.472332][ T8395] __x64_sys_mmap+0xe9/0x1b0 [ 57.476928][ T8395] do_syscall_64+0x103/0x610 [ 57.481504][ T8395] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 57.487383][ T8395] RIP: 0033:0x441289 [ 57.491265][ T8395] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 57.510943][ T8395] RSP: 002b:00007ffd690e15e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 57.519352][ T8395] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441289 [ 57.527575][ T8395] RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000020ffc000 [ 57.535539][ T8395] RBP: 00000000006cb018 R08: 0000000000000003 R09: 0000000000000000 [ 57.543502][ T8395] R10: 0080000000000012 R11: 0000000000000246 R12: 0000000000402000 [ 57.551476][ T8395] R13: 0000000000402090 R14: 0000000000000000 R15: 0000000000000000 [ 57.560479][ T8395] Kernel Offset: disabled [ 57.564909][ T8395] Rebooting in 86400 seconds..