Warning: Permanently added '10.128.0.41' (ECDSA) to the list of known hosts. [ 40.355222] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program [ 40.476804] audit: type=1400 audit(1564830736.173:36): avc: denied { map } for pid=7127 comm="syz-executor240" path="/root/syz-executor240472137" 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 [ 40.489594] ------------[ cut here ]------------ [ 40.507934] WARNING: CPU: 1 PID: 7138 at drivers/md/md.c:7167 md_ioctl+0x34b7/0x4bd0 [ 40.515855] Kernel panic - not syncing: panic_on_warn set ... [ 40.515855] [ 40.523247] CPU: 1 PID: 7138 Comm: syz-executor240 Not tainted 4.14.135 #31 [ 40.530424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.539782] Call Trace: [ 40.542371] dump_stack+0x138/0x19c [ 40.545990] panic+0x1f2/0x426 [ 40.549171] ? add_taint.cold+0x16/0x16 [ 40.553147] ? md_ioctl+0x34b7/0x4bd0 [ 40.556947] ? md_ioctl+0x34b7/0x4bd0 [ 40.560794] __warn.cold+0x2f/0x36 [ 40.564366] ? ist_end_non_atomic+0x10/0x10 [ 40.568682] ? md_ioctl+0x34b7/0x4bd0 [ 40.572503] report_bug+0x216/0x254 [ 40.576145] do_error_trap+0x1bb/0x310 [ 40.580170] ? math_error+0x360/0x360 [ 40.583968] ? __mutex_lock+0x36a/0x1470 [ 40.588037] ? selinux_ipv4_output+0x50/0x50 [ 40.592429] ? md_ioctl+0x9fe/0x4bd0 [ 40.596135] ? __lock_acquire+0x5f7/0x4620 [ 40.600376] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.605223] do_invalid_op+0x1b/0x20 [ 40.608931] invalid_op+0x1b/0x40 [ 40.612398] RIP: 0010:md_ioctl+0x34b7/0x4bd0 [ 40.616800] RSP: 0018:ffff88809daffa20 EFLAGS: 00010297 [ 40.622150] RAX: ffff88808118a5c0 RBX: 0000000000000932 RCX: 0000000000000000 [ 40.629404] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 40.636747] RBP: ffff88809daffc68 R08: ffff888215dd7548 R09: ffffffff88c94720 [ 40.644003] R10: ffff88809daffa10 R11: ffff88808118a5c0 R12: ffff888215dd7540 [ 40.651279] R13: ffff88821a2e7740 R14: ffff888215dd7568 R15: ffff888215dd7708 [ 40.658742] ? find_held_lock+0x35/0x130 [ 40.662974] ? add_new_disk+0x15f0/0x15f0 [ 40.667145] ? lock_downgrade+0x6e0/0x6e0 [ 40.671286] ? avc_has_extended_perms+0x8ec/0xe40 [ 40.676129] ? futex_wake+0x134/0x430 [ 40.680141] ? avc_ss_reset+0x110/0x110 [ 40.684116] ? __lock_acquire+0x5f7/0x4620 [ 40.688345] ? trace_hardirqs_on+0x10/0x10 [ 40.692573] ? do_futex+0x152/0x19e0 [ 40.696364] ? add_new_disk+0x15f0/0x15f0 [ 40.700522] blkdev_ioctl+0x96b/0x1860 [ 40.704413] ? blkpg_ioctl+0x980/0x980 [ 40.708319] ? __might_sleep+0x93/0xb0 [ 40.712218] ? __fget+0x210/0x370 [ 40.715660] block_ioctl+0xde/0x120 [ 40.719396] ? blkdev_fallocate+0x3b0/0x3b0 [ 40.723714] do_vfs_ioctl+0x7ae/0x1060 [ 40.727599] ? selinux_file_mprotect+0x5d0/0x5d0 [ 40.732453] ? lock_downgrade+0x6e0/0x6e0 [ 40.736600] ? ioctl_preallocate+0x1c0/0x1c0 [ 40.741019] ? __fget+0x237/0x370 [ 40.744485] ? security_file_ioctl+0x7d/0xb0 [ 40.748909] ? security_file_ioctl+0x89/0xb0 [ 40.753355] SyS_ioctl+0x8f/0xc0 [ 40.756781] ? do_vfs_ioctl+0x1060/0x1060 [ 40.760933] do_syscall_64+0x1e8/0x640 [ 40.764821] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.769652] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 40.774844] RIP: 0033:0x446879 [ 40.778032] RSP: 002b:00007fa470259db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.785990] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446879 [ 40.793253] RDX: 0000000000000000 RSI: 0000000000000932 RDI: 0000000000000003 [ 40.800521] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 40.807789] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 40.815066] R13: 00007fffd618c0ff R14: 00007fa47025a9c0 R15: 0000000000000000 [ 40.823580] Kernel Offset: disabled [ 40.827251] Rebooting in 86400 seconds..