WARNING: CPU: 0 PID: 26159 at fs/attr.c:234 notify_change+0xca2/0xfb0 fs/attr.c:234 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 26159 Comm: syz-executor.5 Not tainted 5.1.0-rc4-next-20190409 #21 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+0x2cb/0x72b kernel/panic.c:214 __warn.cold+0x20/0x46 kernel/panic.c:576 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:notify_change+0xca2/0xfb0 fs/attr.c:234 Code: d4 5b 0a 00 e8 0f cd b6 ff 4c 8b 7c 24 20 4c 89 ff e8 02 b4 4b 01 89 de 4c 89 ff e8 e8 cf 4b 01 e9 33 fa ff ff e8 ee cc b6 ff <0f> 0b e9 42 f4 ff ff e8 e2 cc b6 ff 44 89 f3 4c 89 ea 48 b8 00 00 RSP: 0018:ffff888055bff9a0 EFLAGS: 00010216 RAX: 0000000000040000 RBX: 0000000000004200 RCX: ffffc9001088c000 RDX: 00000000000000e5 RSI: ffffffff81b9bc02 RDI: 0000000000000007 RBP: ffff888055bff9f0 R08: ffff88805def0400 R09: ffffed101477d387 R10: ffffed101477d386 R11: ffff8880a3be9c37 R12: ffff888055bffa40 R13: ffff8880a3be9b58 R14: 0000000000000000 R15: ffff888055bffad0 __remove_privs fs/inode.c:1806 [inline] file_remove_privs+0x2a9/0x480 fs/inode.c:1828 __generic_file_write_iter+0x15e/0x630 mm/filemap.c:3341 blkdev_write_iter fs/block_dev.c:1965 [inline] blkdev_write_iter+0x23a/0x440 fs/block_dev.c:1942 call_write_iter include/linux/fs.h:1866 [inline] new_sync_write+0x4c7/0x760 fs/read_write.c:474 __vfs_write+0xe4/0x110 fs/read_write.c:487 vfs_write+0x20c/0x580 fs/read_write.c:549 ksys_write+0x14f/0x2d0 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:608 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4582f9 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9395f3fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004582f9 RDX: 0000000000000b61 RSI: 0000000020002b80 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9395f406d4 R13: 00000000004c7a56 R14: 00000000004ddb00 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..