RDX: 00007f5ff3500b0a RSI: 0000000000000002 RDI: 00007f5ff3500b00
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000293 R12: 0000000000000006
------------[ cut here ]------------
R13: 00000000004c7716 R14: 00000000004dd748 R15: 0000000000000005
WARNING: CPU: 0 PID: 15107 at fs/attr.c:213 notify_change+0xa32/0xd10 fs/attr.c:213
kobject: 'loop2' (ffff8880a49f3220): kobject_uevent_env
Kernel panic - not syncing: panic_on_warn set ...

kobject: 'loop2' (ffff8880a49f3220): fill_kobj_path: path = '/devices/virtual/block/loop2'
CPU: 0 PID: 15107 Comm: syz-executor.0 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
kobject: 'loop4' (ffff8880a4a62a60): kobject_uevent_env
kobject: 'loop4' (ffff8880a4a62a60): fill_kobj_path: path = '/devices/virtual/block/loop4'
 __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:notify_change+0xa32/0xd10 fs/attr.c:213
RSP: 0018:ffff88805baff5b0 EFLAGS: 00010216
RAX: 0000000000040000 RBX: ffff8880a4899100 RCX: ffffc90009c3c000
RDX: 00000000000026cb RSI: ffffffff81939db2 RDI: ffff8880a48991e0
RBP: ffff88805baff600 R08: ffff88808ba34540 R09: 0000000000000000
R10: 0000000000000000 R11: ffff88808ba34540 R12: ffff88805baff650
R13: 0000000000004200 R14: ffff8880a4899100 R15: ffff88805baff6c0
 __remove_privs fs/inode.c:1806 [inline]
 file_remove_privs+0x229/0x430 fs/inode.c:1828
 __generic_file_write_iter+0x15e/0x5b0 mm/filemap.c:3095
 blkdev_write_iter fs/block_dev.c:1914 [inline]
 blkdev_write_iter+0x1e8/0x3a0 fs/block_dev.c:1891
 call_write_iter include/linux/fs.h:1774 [inline]
 do_iter_readv_writev+0x41e/0x680 fs/read_write.c:674
 do_iter_write fs/read_write.c:953 [inline]
 do_iter_write+0x154/0x550 fs/read_write.c:934
 vfs_iter_write+0x77/0xb0 fs/read_write.c:966
 iter_file_splice_write+0x578/0xae0 fs/splice.c:749
 do_splice_from fs/splice.c:851 [inline]
 direct_splice_actor+0x126/0x1a0 fs/splice.c:1018
 splice_direct_to_actor+0x2a1/0x7b0 fs/splice.c:973
 do_splice_direct+0x18d/0x230 fs/splice.c:1061
 do_sendfile+0x4db/0xbd0 fs/read_write.c:1440
 SYSC_sendfile64 fs/read_write.c:1501 [inline]
 SyS_sendfile64+0x102/0x110 fs/read_write.c:1487
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x458c29
RSP: 002b:00007f01759c9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000458c29
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0020000102000014 R11: 0000000000000246 R12: 00007f01759ca6d4
R13: 00000000004c5e10 R14: 00000000004da5c8 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..