Warning: Permanently added '10.128.0.34' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 520.974650] audit: type=1400 audit(1598257119.284:8): avc: denied { execmem } for pid=6343 comm="syz-executor143" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 521.015159] md: md0 stopped. [ 521.024605] md: md0 stopped. [ 521.027064] ------------[ cut here ]------------ [ 521.032515] WARNING: CPU: 1 PID: 6376 at drivers/md/md.c:7190 md_ioctl+0x32e3/0x4be0 [ 521.040395] Kernel panic - not syncing: panic_on_warn set ... [ 521.040395] [ 521.047747] CPU: 1 PID: 6376 Comm: syz-executor143 Not tainted 4.14.194-syzkaller #0 [ 521.055609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 521.064958] Call Trace: [ 521.067583] dump_stack+0x1b2/0x283 [ 521.071272] panic+0x1f9/0x42d [ 521.074454] ? add_taint.cold+0x16/0x16 [ 521.078459] ? md_ioctl+0x32e3/0x4be0 [ 521.082268] ? md_ioctl+0x32e3/0x4be0 [ 521.086078] __warn.cold+0x20/0x4b [ 521.089594] ? ist_end_non_atomic+0x10/0x10 [ 521.093920] ? md_ioctl+0x32e3/0x4be0 [ 521.097715] report_bug+0x208/0x249 [ 521.101357] do_error_trap+0x195/0x2d0 [ 521.105248] ? math_error+0x2d0/0x2d0 [ 521.109045] ? md_ioctl+0xb50/0x4be0 [ 521.112826] ? __mutex_lock+0x360/0x1310 [ 521.116918] ? cred_has_capability.isra.0+0xf5/0x1f0 [ 521.122009] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 521.126838] invalid_op+0x1b/0x40 [ 521.130284] RIP: 0010:md_ioctl+0x32e3/0x4be0 [ 521.134663] RSP: 0018:ffff888098227a48 EFLAGS: 00010297 [ 521.140003] RAX: ffff888097b3c340 RBX: 1ffff11013044f50 RCX: 0000000000000000 [ 521.147251] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 [ 521.154496] RBP: ffff88809a4b43c0 R08: 0000000000000000 R09: 00000000000403ca [ 521.161740] R10: ffff888097b3cbc8 R11: ffff888097b3c340 R12: 0000000000000000 [ 521.168995] R13: ffff8880a6b05140 R14: ffff88809a4b4588 R15: 0000000000000932 [ 521.176253] ? md_ioctl+0x32e3/0x4be0 [ 521.180045] ? add_new_disk+0x1bb0/0x1bb0 [ 521.184179] ? avc_has_extended_perms+0x5c1/0xbf0 [ 521.189073] ? lock_acquire+0x170/0x3f0 [ 521.193041] ? lock_downgrade+0x740/0x740 [ 521.197186] ? avc_has_extended_perms+0x6e4/0xbf0 [ 521.202026] ? avc_ss_reset+0x100/0x100 [ 521.205989] ? __lock_acquire+0x5fc/0x3f20 [ 521.210215] ? add_new_disk+0x1bb0/0x1bb0 [ 521.214430] blkdev_ioctl+0x540/0x1830 [ 521.218306] ? blkpg_ioctl+0x8d0/0x8d0 [ 521.222185] ? trace_hardirqs_on+0x10/0x10 [ 521.226462] block_ioctl+0xd9/0x120 [ 521.230079] ? blkdev_fallocate+0x3a0/0x3a0 [ 521.234468] do_vfs_ioctl+0x75a/0xff0 [ 521.238257] ? selinux_inode_setxattr+0x730/0x730 [ 521.243115] ? ioctl_preallocate+0x1a0/0x1a0 [ 521.247529] ? lock_downgrade+0x740/0x740 [ 521.251669] ? __fget+0x225/0x360 [ 521.255181] ? security_file_ioctl+0x83/0xb0 [ 521.259583] SyS_ioctl+0x7f/0xb0 [ 521.262937] ? do_vfs_ioctl+0xff0/0xff0 [ 521.266924] do_syscall_64+0x1d5/0x640 [ 521.270820] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 521.276021] RIP: 0033:0x4468e9 [ 521.279201] RSP: 002b:00007ffa90133db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 521.286908] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 00000000004468e9 [ 521.294192] RDX: 0000000000000000 RSI: 0000000000000932 RDI: 0000000000000003 [ 521.301453] RBP: 00000000006dbc40 R08: 00007ffa90134700 R09: 0000000000000000 [ 521.308717] R10: 00007ffa90134700 R11: 0000000000000246 R12: 00000000006dbc4c [ 521.315985] R13: 00007ffeb8d557df R14: 00007ffa901349c0 R15: 0000000000000001 [ 521.324508] Kernel Offset: disabled [ 521.328177] Rebooting in 86400 seconds..