[ 32.200515] audit: type=1800 audit(1580640419.248:33): pid=7119 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 [ 32.228670] audit: type=1800 audit(1580640419.248:34): pid=7119 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: [ 37.620562] random: sshd: uninitialized urandom read (32 bytes read) [ 37.942859] audit: type=1400 audit(1580640424.988:35): avc: denied { map } for pid=7291 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 [ 37.993564] random: sshd: uninitialized urandom read (32 bytes read) [ 38.689906] random: sshd: uninitialized urandom read (32 bytes read) [ 104.592251] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.224' (ECDSA) to the list of known hosts. [ 110.155549] random: sshd: uninitialized urandom read (32 bytes read) [ 110.270809] audit: type=1400 audit(1580640497.318:36): avc: denied { map } for pid=7303 comm="syz-executor710" path="/root/syz-executor710866840" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 110.530842] IPVS: ftp: loaded support on port[0] = 21 executing program [ 111.297978] EXT4-fs (sda1): re-mounted. Opts: [ 111.404221] EXT4-fs (sda1): re-mounted. Opts: [ 111.511081] IPVS: ftp: loaded support on port[0] = 21 executing program [ 111.562183] EXT4-fs (sda1): re-mounted. Opts: [ 111.655350] EXT4-fs (sda1): re-mounted. Opts: executing program [ 111.831571] EXT4-fs (sda1): re-mounted. Opts: [ 111.922822] EXT4-fs (sda1): re-mounted. Opts: executing program [ 112.113383] EXT4-fs (sda1): re-mounted. Opts: executing program [ 112.216996] EXT4-fs (sda1): re-mounted. Opts: [ 112.249383] EXT4-fs (sda1): re-mounted. Opts: executing program [ 112.343241] EXT4-fs (sda1): re-mounted. Opts: executing program [ 112.451040] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program [ 113.301734] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 114.031677] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 114.812767] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 116.326517] EXT4-fs: 126 callbacks suppressed [ 116.326523] EXT4-fs (sda1): re-mounted. Opts: [ 116.356432] EXT4-fs (sda1): re-mounted. Opts: [ 116.377173] EXT4-fs (sda1): re-mounted. Opts: [ 116.394181] EXT4-fs (sda1): re-mounted. Opts: [ 116.418812] EXT4-fs (sda1): re-mounted. Opts: [ 116.436458] EXT4-fs (sda1): re-mounted. Opts: executing program [ 116.460117] EXT4-fs (sda1): re-mounted. Opts: [ 116.466159] EXT4-fs (sda1): re-mounted. Opts: [ 116.496705] EXT4-fs (sda1): re-mounted. Opts: executing program [ 116.518150] EXT4-fs (sda1): re-mounted. Opts: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 121.373008] EXT4-fs: 215 callbacks suppressed [ 121.373014] EXT4-fs (sda1): re-mounted. Opts: [ 121.386799] EXT4-fs (sda1): re-mounted. Opts: [ 121.393801] EXT4-fs (sda1): re-mounted. Opts: executing program executing program executing program [ 121.464447] EXT4-fs (sda1): re-mounted. Opts: [ 121.481099] EXT4-fs (sda1): re-mounted. Opts: [ 121.498163] EXT4-fs (sda1): re-mounted. Opts: [ 121.564451] EXT4-fs (sda1): re-mounted. Opts: [ 121.571694] EXT4-fs (sda1): re-mounted. Opts: [ 121.588321] EXT4-fs (sda1): re-mounted. Opts: [ 121.599556] EXT4-fs (sda1): re-mounted. Opts: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 126.382496] EXT4-fs: 208 callbacks suppressed [ 126.382503] EXT4-fs (sda1): re-mounted. Opts: [ 126.428634] EXT4-fs (sda1): re-mounted. Opts: [ 126.451704] EXT4-fs (sda1): re-mounted. Opts: [ 126.465262] EXT4-fs (sda1): re-mounted. Opts: [ 126.471950] EXT4-fs (sda1): re-mounted. Opts: executing program [ 126.526421] EXT4-fs (sda1): re-mounted. Opts: executing program [ 126.570368] EXT4-fs (sda1): re-mounted. Opts: [ 126.577235] EXT4-fs (sda1): re-mounted. Opts: executing program executing program executing program [ 126.651236] EXT4-fs (sda1): re-mounted. Opts: [ 126.667246] EXT4-fs (sda1): re-mounted. Opts: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 131.423448] EXT4-fs: 203 callbacks suppressed [ 131.423454] EXT4-fs (sda1): re-mounted. Opts: [ 131.459126] EXT4-fs (sda1): re-mounted. Opts: [ 131.473367] EXT4-fs (sda1): re-mounted. Opts: [ 131.482977] EXT4-fs (sda1): re-mounted. Opts: [ 131.494175] EXT4-fs (sda1): re-mounted. Opts: [ 131.513703] EXT4-fs (sda1): re-mounted. Opts: [ 131.535914] EXT4-fs (sda1): re-mounted. Opts: [ 131.543568] EXT4-fs (sda1): re-mounted. Opts: [ 131.549935] EXT4-fs (sda1): re-mounted. Opts: [ 131.569262] EXT4-fs (sda1): re-mounted. Opts: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 136.437201] EXT4-fs: 212 callbacks suppressed [ 136.437207] EXT4-fs (sda1): re-mounted. Opts: [ 136.453616] EXT4-fs (sda1): re-mounted. Opts: executing program executing program [ 136.481336] EXT4-fs (sda1): re-mounted. Opts: executing program [ 136.515554] EXT4-fs (sda1): re-mounted. Opts: [ 136.526931] EXT4-fs (sda1): re-mounted. Opts: [ 136.536013] EXT4-fs (sda1): re-mounted. Opts: [ 136.558458] random: crng init done [ 136.562314] EXT4-fs (sda1): re-mounted. Opts: [ 136.578068] EXT4-fs (sda1): re-mounted. Opts: [ 136.609890] EXT4-fs (sda1): re-mounted. Opts: executing program [ 136.649241] EXT4-fs (sda1): re-mounted. Opts: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 141.478055] EXT4-fs: 210 callbacks suppressed [ 141.478062] EXT4-fs (sda1): re-mounted. Opts: [ 141.497985] EXT4-fs (sda1): re-mounted. Opts: [ 141.520836] EXT4-fs (sda1): re-mounted. Opts: [ 141.526935] EXT4-fs (sda1): re-mounted. Opts: [ 141.534112] EXT4-fs (sda1): re-mounted. Opts: [ 141.543042] EXT4-fs (sda1): re-mounted. Opts: [ 141.562621] EXT4-fs (sda1): re-mounted. Opts: [ 141.603677] EXT4-fs (sda1): re-mounted. Opts: [ 141.624157] EXT4-fs (sda1): re-mounted. Opts: executing program [ 141.661488] EXT4-fs (sda1): re-mounted. Opts: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 146.498776] EXT4-fs: 211 callbacks suppressed [ 146.498783] EXT4-fs (sda1): re-mounted. Opts: [ 146.515650] EXT4-fs (sda1): re-mounted. Opts: [ 146.534180] EXT4-fs (sda1): re-mounted. Opts: executing program [ 146.568303] EXT4-fs (sda1): re-mounted. Opts: [ 146.595582] EXT4-fs (sda1): re-mounted. Opts: executing program [ 146.621735] EXT4-fs (sda1): re-mounted. Opts: [ 146.636279] EXT4-fs (sda1): re-mounted. Opts: [ 146.660773] EXT4-fs (sda1): re-mounted. Opts: [ 146.692323] EXT4-fs (sda1): re-mounted. Opts: [ 146.701715] EXT4-fs (sda1): re-mounted. Opts: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 151.506304] EXT4-fs: 215 callbacks suppressed [ 151.506310] EXT4-fs (sda1): re-mounted. Opts: executing program [ 151.557586] EXT4-fs (sda1): re-mounted. Opts: [ 151.574977] EXT4-fs (sda1): re-mounted. Opts: [ 151.581223] EXT4-fs (sda1): re-mounted. Opts: [ 151.603413] EXT4-fs (sda1): re-mounted. Opts: [ 151.612563] EXT4-fs (sda1): re-mounted. Opts: [ 151.644174] EXT4-fs (sda1): re-mounted. Opts: [ 151.670365] EXT4-fs (sda1): re-mounted. Opts: [ 151.688713] EXT4-fs (sda1): re-mounted. Opts: [ 151.694456] EXT4-fs (sda1): re-mounted. Opts: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 156.518782] EXT4-fs: 213 callbacks suppressed [ 156.518789] EXT4-fs (sda1): re-mounted. Opts: [ 156.556505] EXT4-fs (sda1): re-mounted. Opts: executing program executing program [ 156.573207] EXT4-fs (sda1): re-mounted. Opts: [ 156.596821] EXT4-fs (sda1): re-mounted. Opts: [ 156.618970] EXT4-fs (sda1): re-mounted. Opts: [ 156.630423] EXT4-fs (sda1): re-mounted. Opts: [ 156.649239] EXT4-fs (sda1): re-mounted. Opts: [ 156.668238] EXT4-fs (sda1): re-mounted. Opts: [ 156.689387] EXT4-fs (sda1): re-mounted. Opts: executing program [ 156.717400] EXT4-fs (sda1): re-mounted. Opts: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 160.512215] kasan: CONFIG_KASAN_INLINE enabled [ 160.523331] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 160.554564] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 160.560964] Modules linked in: [ 160.564148] CPU: 1 PID: 17282 Comm: blkid Not tainted 4.14.169-syzkaller #0 [ 160.573837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 160.583182] task: ffff8880a844a5c0 task.stack: ffff888082078000 [ 160.589232] RIP: 0010:path_openat+0x20b/0x3db0 [ 160.593798] RSP: 0018:ffff88808207fb28 EFLAGS: 00010247 [ 160.599150] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0001020304050608 [ 160.606494] RDX: 0000000000000000 RSI: 1ffff1101040ff56 RDI: 0000000000000004 [ 160.613771] RBP: ffff88808207fc80 R08: ffff8880a844a5c0 R09: 0000000000000001 [ 160.621030] R10: 0000000000000000 R11: 0000000000000003 R12: ffff88808207fcc0 [ 160.628285] R13: ffff88808207fcc0 R14: ffff88808450c000 R15: 0000000000000000 [ 160.635578] FS: 0000000000000000(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000 [ 160.643838] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 160.649708] CR2: 00007f638f17da20 CR3: 0000000098d22000 CR4: 00000000001406e0 [ 160.656969] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 160.664268] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 160.671533] Call Trace: [ 160.674117] ? trace_hardirqs_on+0x10/0x10 [ 160.678471] ? save_trace+0x290/0x290 [ 160.682262] ? path_lookupat.isra.0+0x7b0/0x7b0 [ 160.686931] ? find_held_lock+0x35/0x130 [ 160.690985] ? save_trace+0x290/0x290 [ 160.694787] ? __alloc_fd+0x1d4/0x4a0 [ 160.698582] do_filp_open+0x18e/0x250 [ 160.702373] ? may_open_dev+0xe0/0xe0 [ 160.706159] ? do_raw_spin_unlock+0x174/0x260 [ 160.710651] ? _raw_spin_unlock+0x2d/0x50 [ 160.714815] ? __alloc_fd+0x1d4/0x4a0 [ 160.718611] do_sys_open+0x2c5/0x430 [ 160.722308] ? filp_open+0x70/0x70 [ 160.725842] SyS_open+0x2d/0x40 [ 160.729105] ? do_sys_open+0x430/0x430 [ 160.732983] do_syscall_64+0x1e8/0x640 [ 160.736861] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 160.741697] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 160.746875] RIP: 0033:0x7f42e128c1a7 [ 160.750573] RSP: 002b:00007fff1295af38 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 160.758401] RAX: ffffffffffffffda RBX: 0000000000400f31 RCX: 00007f42e128c1a7 [ 160.765662] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 00007f42e1290282 [ 160.773121] RBP: 0000000000000001 R08: 00007f42e1497570 R09: 0000000000000000 [ 160.780373] R10: ffffffffffffffb0 R11: 0000000000000246 R12: 00007f42e1497090 [ 160.787632] R13: 00007f42e1496040 R14: 0000000000000000 R15: 00007f42e1497570 [ 160.794897] Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 03 30 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5e 58 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 [ 160.813983] RIP: path_openat+0x20b/0x3db0 RSP: ffff88808207fb28 [ 160.820706] ---[ end trace 0b7072e6cbd59873 ]--- [ 160.825544] Kernel panic - not syncing: Fatal exception [ 160.832693] Kernel Offset: disabled [ 160.836323] Rebooting in 86400 seconds..