WARNING: CPU: 0 PID: 4208 at fs/attr.c:234 notify_change+0xca0/0xfb0 fs/attr.c:234
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 4208 Comm: syz-executor.3 Not tainted 4.19.48 #20
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x263/0x507 kernel/panic.c:185
 __warn.cold+0x20/0x4a kernel/panic.c:540
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1013
RIP: 0010:notify_change+0xca0/0xfb0 fs/attr.c:234
Code: f6 e6 09 00 e8 e1 55 b9 ff 4c 8b 7c 24 20 4c 89 ff e8 24 f8 42 01 89 de 4c 89 ff e8 0a 14 43 01 e9 35 fa ff ff e8 c0 55 b9 ff <0f> 0b e9 44 f4 ff ff e8 b4 55 b9 ff 44 89 f3 4c 89 ea 48 b8 00 00
kobject: 'kvm' (0000000012eab8b7): kobject_uevent_env
RSP: 0018:ffff88805b3ff4d0 EFLAGS: 00010216
RAX: 0000000000040000 RBX: 0000000000004200 RCX: ffffc9000c4a2000
RDX: 000000000000379b RSI: ffffffff81b1ae60 RDI: 0000000000000007
RBP: ffff88805b3ff520 R08: ffff88805dc44000 R09: ffffed10148d9244
R10: ffffed10148d9243 R11: ffff8880a46c921f R12: ffff88805b3ff570
R13: ffff8880a46c9140 R14: 0000000000000000 R15: ffff88805b3ff600
 __remove_privs fs/inode.c:1806 [inline]
 file_remove_privs+0x2a9/0x480 fs/inode.c:1828
kobject: 'loop2' (00000000e383e40f): kobject_uevent_env
kobject: 'loop2' (00000000e383e40f): fill_kobj_path: path = '/devices/virtual/block/loop2'
 __generic_file_write_iter+0x15e/0x630 mm/filemap.c:3210
 blkdev_write_iter fs/block_dev.c:1924 [inline]
 blkdev_write_iter+0x233/0x440 fs/block_dev.c:1901
kobject: 'kvm' (0000000012eab8b7): fill_kobj_path: path = '/devices/virtual/misc/kvm'
 call_write_iter include/linux/fs.h:1820 [inline]
 do_iter_readv_writev+0x558/0x830 fs/read_write.c:681
 do_iter_write fs/read_write.c:960 [inline]
 do_iter_write+0x184/0x5f0 fs/read_write.c:941
 vfs_iter_write+0x77/0xb0 fs/read_write.c:973
 iter_file_splice_write+0x661/0xbd0 fs/splice.c:750
 do_splice_from fs/splice.c:852 [inline]
 direct_splice_actor+0x123/0x190 fs/splice.c:1019
 splice_direct_to_actor+0x2e7/0x890 fs/splice.c:974
 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062
 do_sendfile+0x597/0xce0 fs/read_write.c:1447
 __do_sys_sendfile64 fs/read_write.c:1508 [inline]
 __se_sys_sendfile64 fs/read_write.c:1494 [inline]
 __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1494
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459279
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9a5cc64c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459279
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 002000010200f399 R11: 0000000000000246 R12: 00007f9a5cc656d4
R13: 00000000004c65f3 R14: 00000000004db2a8 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..