[ 37.643351][ T26] audit: type=1800 audit(1556020132.094:26): pid=7638 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 37.664328][ T26] audit: type=1800 audit(1556020132.094:27): pid=7638 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 37.687502][ T26] audit: type=1800 audit(1556020132.104:28): pid=7638 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. [ 38.425370][ T26] audit: type=1800 audit(1556020132.904:29): pid=7638 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 '10.128.0.51' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 75.316957][ T8009] ------------[ cut here ]------------ [ 75.324283][ T8009] memory commitment underflow [ 75.324385][ T8009] WARNING: CPU: 1 PID: 8009 at mm/util.c:657 __vm_enough_memory+0x2db/0x3a0 [ 75.337799][ T8009] Kernel panic - not syncing: panic_on_warn set ... [ 75.344394][ T8009] CPU: 1 PID: 8009 Comm: syz-executor941 Not tainted 5.1.0-rc5-next-20190418 #28 [ 75.353825][ T8009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.364115][ T8009] Call Trace: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 75.367420][ T8009] dump_stack+0x172/0x1f0 [ 75.371753][ T8009] ? __vm_enough_memory+0x260/0x3a0 [ 75.377076][ T8009] panic+0x2cb/0x72b [ 75.380988][ T8009] ? __warn_printk+0xf3/0xf3 [ 75.385764][ T8009] ? __vm_enough_memory+0x2db/0x3a0 [ 75.390975][ T8009] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.397233][ T8009] ? __warn.cold+0x5/0x46 [ 75.401603][ T8009] ? __warn+0xe8/0x1d0 [ 75.405670][ T8009] ? __vm_enough_memory+0x2db/0x3a0 [ 75.410868][ T8009] __warn.cold+0x20/0x46 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 75.415331][ T8009] ? __vm_enough_memory+0x2db/0x3a0 [ 75.420562][ T8009] report_bug+0x263/0x2b0 [ 75.425032][ T8009] do_error_trap+0x11b/0x200 [ 75.429632][ T8009] do_invalid_op+0x37/0x50 [ 75.434239][ T8009] ? __vm_enough_memory+0x2db/0x3a0 [ 75.439560][ T8009] invalid_op+0x14/0x20 [ 75.443844][ T8009] RIP: 0010:__vm_enough_memory+0x2db/0x3a0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 75.449785][ T8009] Code: e8 7a 94 db ff 0f b6 75 d0 40 84 f6 0f 85 f0 fd ff ff e8 28 93 db ff 48 c7 c7 e0 76 72 87 c6 05 e8 db c6 07 01 e8 73 0d ae ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 0f b6 14 [ 75.471268][ T8009] RSP: 0018:ffff8880a06dfb28 EFLAGS: 00010282 [ 75.477450][ T8009] RAX: 0000000000000000 RBX: 0000000000000021 RCX: 0000000000000000 [ 75.485457][ T8009] RDX: 0000000000000000 RSI: ffffffff815b2ba6 RDI: ffffed10140dbf57 [ 75.493621][ T8009] RBP: ffff8880a06dfb60 R08: ffff88808ad7c580 R09: ffff88808ad7ce20 [ 75.502691][ T8009] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808b33ac00 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 75.510880][ T8009] R13: 0000000000000001 R14: ffffffff88a26b40 R15: 0000000000000c67 [ 75.519152][ T8009] ? vprintk_func+0x86/0x189 [ 75.524163][ T8009] ? __vm_enough_memory+0x2db/0x3a0 [ 75.530217][ T8009] security_vm_enough_memory_mm+0xa0/0xd0 [ 75.536062][ T8009] mmap_region+0x371/0x1750 [ 75.540566][ T8009] ? __x64_sys_brk+0x760/0x760 [ 75.545444][ T8009] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 75.551773][ T8009] ? get_unmapped_area+0x295/0x3b0 [ 75.556882][ T8009] do_mmap+0x924/0x1090 [ 75.561086][ T8009] vm_mmap_pgoff+0x1c5/0x230 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 75.565693][ T8009] ? vma_is_stack_for_current+0xd0/0xd0 [ 75.571248][ T8009] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 75.576961][ T8009] ? ktime_get+0x208/0x300 [ 75.581372][ T8009] ksys_mmap_pgoff+0xf7/0x630 [ 75.586055][ T8009] ? find_mergeable_anon_vma+0x2e0/0x2e0 [ 75.592319][ T8009] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 75.597790][ T8009] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 75.603972][ T8009] ? do_syscall_64+0x26/0x670 [ 75.608958][ T8009] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 75.615314][ T8009] __x64_sys_mmap+0xe9/0x1b0 [ 75.619921][ T8009] do_syscall_64+0x103/0x670 [ 75.624509][ T8009] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.630537][ T8009] RIP: 0033:0x4467fa [ 75.634428][ T8009] Code: 89 f5 41 54 49 89 fc 55 53 74 35 49 63 e8 48 63 da 4d 89 f9 49 89 e8 4d 63 d6 48 89 da 4c 89 ee 4c 89 e7 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 4e 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f 00 [ 75.654437][ T8009] RSP: 002b:00007ffe84192e08 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 executing program executing program executing program executing program executing program executing program [ 75.662953][ T8009] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004467fa [ 75.670945][ T8009] RDX: 0000000000000003 RSI: 0000000000021000 RDI: 0000000000000000 [ 75.679023][ T8009] RBP: ffffffffffffffff R08: ffffffffffffffff R09: 0000000000000000 [ 75.687008][ T8009] R10: 0000000000020022 R11: 0000000000000246 R12: 0000000000000000 [ 75.695177][ T8009] R13: 0000000000021000 R14: 0000000000020022 R15: 0000000000000000 [ 75.704416][ T8009] Kernel Offset: disabled [ 75.709300][ T8009] Rebooting in 86400 seconds..