audit: type=1400 audit(1537927100.651:7): avc:  denied  { map } for  pid=1799 comm="syz-executor628" path="/root/syz-executor628809021" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1819 at fs/attr.c:213 notify_change2+0xae4/0xdd0 fs/attr.c:213
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 1819 Comm: syz-executor628 Not tainted 4.14.71+ #8
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xb9/0x11b lib/dump_stack.c:53
 panic+0x1bf/0x3a4 kernel/panic.c:181
 __warn.cold.7+0x148/0x185 kernel/panic.c:542
 report_bug+0x1f7/0x26c lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 do_error_trap+0x1ba/0x2c0 arch/x86/kernel/traps.c:295
 invalid_op+0x18/0x40 arch/x86/entry/entry_64.S:944
RIP: 0010:notify_change2+0xae4/0xdd0 fs/attr.c:213
RSP: 0018:ffff8801cf6875a0 EFLAGS: 00010297
RAX: ffff8801cf6ac680 RBX: 0000000000004200 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801d99fcf20 RDI: ffff8801d930e860
RBP: ffff8801cf687608 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8801cf6aceb0 R11: 0000000000000001 R12: ffff8801d930e780
R13: ffff8801cf687638 R14: ffff8801d99fcf20 R15: ffff8801d930e78c
 __remove_privs fs/inode.c:1806 [inline]
 file_remove_privs+0x25c/0x440 fs/inode.c:1828
 __generic_file_write_iter+0x155/0x540 mm/filemap.c:3108
 blkdev_write_iter+0x1fa/0x3d0 fs/block_dev.c:1906
 call_write_iter include/linux/fs.h:1782 [inline]
 do_iter_readv_writev+0x3a4/0x560 fs/read_write.c:678
 do_iter_write+0x156/0x530 fs/read_write.c:957
 vfs_iter_write+0x70/0xa0 fs/read_write.c:970
 iter_file_splice_write+0x5b4/0xab0 fs/splice.c:749
 do_splice_from fs/splice.c:851 [inline]
 direct_splice_actor+0x116/0x160 fs/splice.c:1018
 splice_direct_to_actor+0x28c/0x750 fs/splice.c:973
 do_splice_direct+0x17b/0x220 fs/splice.c:1061
 do_sendfile+0x4a1/0xb50 fs/read_write.c:1438
 SYSC_sendfile64 fs/read_write.c:1493 [inline]
 SyS_sendfile64+0xab/0x140 fs/read_write.c:1485
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x444ca9
RSP: 002b:00007ffd4d062ce8 EFLAGS: 00000286 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000020000040 RCX: 0000000000444ca9
RDX: 0000000020000000 RSI: 0000000000000003 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00000000004002e0 R09: 00000000004002e0
R10: 0000000002000005 R11: 0000000000000286 R12: 000000000000dbc2
R13: 0000000000401ff0 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: 0x37200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
Rebooting in 86400 seconds..