[ 34.946350][ T26] audit: type=1800 audit(1556019352.898:27): pid=7427 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 34.967029][ T26] audit: type=1800 audit(1556019352.898:28): pid=7427 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. [ 35.664873][ T26] audit: type=1800 audit(1556019353.688:29): pid=7427 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 [ 35.691845][ T26] audit: type=1800 audit(1556019353.688:30): pid=7427 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.129' (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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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: [ 50.067995][ T7581] ------------[ cut here ]------------ [ 50.076392][ T7581] memory commitment underflow [ 50.076509][ T7581] WARNING: CPU: 1 PID: 7581 at mm/util.c:657 __vm_enough_memory+0x2db/0x3a0 [ 50.089871][ T7581] Kernel panic - not syncing: panic_on_warn set ... [ 50.096467][ T7581] CPU: 1 PID: 7581 Comm: syz-executor484 Not tainted 5.1.0-rc5-next-20190418 #28 [ 50.105798][ T7581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program executing program [ 50.115856][ T7581] Call Trace: [ 50.119158][ T7581] dump_stack+0x172/0x1f0 [ 50.123510][ T7581] ? __vm_enough_memory+0x260/0x3a0 [ 50.128722][ T7581] panic+0x2cb/0x72b [ 50.132635][ T7581] ? __warn_printk+0xf3/0xf3 [ 50.137244][ T7581] ? __vm_enough_memory+0x2db/0x3a0 [ 50.142472][ T7581] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.148723][ T7581] ? __warn.cold+0x5/0x46 [ 50.153067][ T7581] ? __warn+0xe8/0x1d0 [ 50.157154][ T7581] ? __vm_enough_memory+0x2db/0x3a0 [ 50.162370][ T7581] __warn.cold+0x20/0x46 [ 50.166627][ T7581] ? vprintk_emit+0x1ea/0x700 [ 50.171317][ T7581] ? __vm_enough_memory+0x2db/0x3a0 [ 50.176529][ T7581] report_bug+0x263/0x2b0 [ 50.180877][ T7581] do_error_trap+0x11b/0x200 [ 50.185489][ T7581] do_invalid_op+0x37/0x50 [ 50.189918][ T7581] ? __vm_enough_memory+0x2db/0x3a0 [ 50.195130][ T7581] invalid_op+0x14/0x20 [ 50.199311][ T7581] RIP: 0010:__vm_enough_memory+0x2db/0x3a0 [ 50.205129][ T7581] 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 [ 50.224744][ T7581] RSP: 0018:ffff888099c6fb10 EFLAGS: 00010286 [ 50.230819][ T7581] RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000000000 [ 50.239265][ T7581] RDX: 0000000000000000 RSI: ffffffff815b2ba6 RDI: ffffed101338df54 [ 50.247243][ T7581] RBP: ffff888099c6fb48 R08: ffff8880895f4380 R09: ffff8880895f4c70 [ 50.255236][ T7581] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808d058000 [ 50.263232][ T7581] R13: 0000000000000001 R14: ffffffff88a26b40 R15: 0000000000000c67 [ 50.271257][ T7581] ? vprintk_func+0x86/0x189 [ 50.275874][ T7581] security_vm_enough_memory_mm+0xa0/0xd0 [ 50.281621][ T7581] copy_process.part.0+0x3449/0x7a90 [ 50.286944][ T7581] ? __cleanup_sighand+0x60/0x60 [ 50.291897][ T7581] ? task_stopped_code+0x180/0x180 [ 50.297037][ T7581] _do_fork+0x257/0xfd0 [ 50.301210][ T7581] ? fork_idle+0x1d0/0x1d0 [ 50.305655][ T7581] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.311125][ T7581] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.316601][ T7581] ? do_syscall_64+0x26/0x670 [ 50.321301][ T7581] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.327405][ T7581] ? do_syscall_64+0x26/0x670 [ 50.332360][ T7581] __x64_sys_clone+0xbf/0x150 [ 50.337059][ T7581] do_syscall_64+0x103/0x670 [ 50.341673][ T7581] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.347570][ T7581] RIP: 0033:0x43fc4a [ 50.351475][ T7581] Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 0c 25 10 00 00 00 31 d2 4d 8d 91 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 f5 00 00 00 85 c0 41 89 c5 0f 85 fc 00 00 [ 50.371084][ T7581] RSP: 002b:00007ffd54d1c670 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 50.379505][ T7581] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043fc4a [ 50.387483][ T7581] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 50.395465][ T7581] RBP: 00007ffd54d1c690 R08: 0000000000001d9d R09: 0000555557359880 [ 50.403446][ T7581] R10: 0000555557359b50 R11: 0000000000000246 R12: 0000000000001d9d [ 50.411427][ T7581] R13: 0000000000402090 R14: 0000000000000000 R15: 0000000000000000 [ 50.420489][ T7581] Kernel Offset: disabled [ 50.424895][ T7581] Rebooting in 86400 seconds..