audit: type=1400 audit(1555407132.210:36): avc: denied { map } for pid=7029 comm="syz-executor376" path="/root/syz-executor376908528" 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 md: md0 stopped. md: md0 stopped. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7056 at drivers/md/md.c:7165 md_ioctl+0x34bd/0x4bf0 drivers/md/md.c:7165 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 7056 Comm: syz-executor376 Not tainted 4.14.111 #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x19c lib/dump_stack.c:53 panic+0x1f2/0x438 kernel/panic.c:182 __warn.cold+0x2f/0x34 kernel/panic.c:546 report_bug+0x216/0x254 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:944 RIP: 0010:md_ioctl+0x34bd/0x4bf0 drivers/md/md.c:7165 RSP: 0018:ffff888093857a20 EFLAGS: 00010297 RAX: ffff888089d926c0 RBX: 0000000000000932 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff888093857c68 R08: ffff88809b76c088 R09: ffffffff88cab060 R10: ffff888093857a10 R11: ffff888089d926c0 R12: ffff88809b76c080 R13: ffff8880a4554140 R14: ffff88809b76c0a8 R15: ffff88809b76c248 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x983/0x1880 block/ioctl.c:594 block_ioctl+0xde/0x120 fs/block_dev.c:1881 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7b9/0x1070 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x446749 RSP: 002b:00007f9a4cf8bdb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446749 RDX: 0000000000000000 RSI: 0000000000000932 RDI: 0000000000000003 RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c R13: 00007ffce65d34bf R14: 00007f9a4cf8c9c0 R15: 000000000000002d Kernel Offset: disabled Rebooting in 86400 seconds..