WARNING: CPU: 1 PID: 20915 at fs/attr.c:234 notify_change+0xca0/0xfb0 fs/attr.c:234 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 20915 Comm: syz-executor.5 Not tainted 4.19.50 #22 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 91 55 b9 ff 4c 8b 7c 24 20 4c 89 ff e8 04 f7 42 01 89 de 4c 89 ff e8 ea 12 43 01 e9 35 fa ff ff e8 70 55 b9 ff <0f> 0b e9 44 f4 ff ff e8 64 55 b9 ff 44 89 f3 4c 89 ea 48 b8 00 00 RSP: 0018:ffff88805e3977e0 EFLAGS: 00010202 RAX: 0000000000040000 RBX: 0000000000004200 RCX: ffffc9001377f000 RDX: 0000000000001d50 RSI: ffffffff81b1b170 RDI: 0000000000000007 RBP: ffff88805e397830 R08: ffff88805c5c0600 R09: ffffed10147f4186 R10: ffffed10147f4185 R11: ffff8880a3fa0c2f R12: ffff88805e397880 R13: ffff8880a3fa0b50 R14: 0000000000000000 R15: ffff88805e397910 __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:3210 blkdev_write_iter fs/block_dev.c:1924 [inline] blkdev_write_iter+0x233/0x440 fs/block_dev.c:1901 call_write_iter include/linux/fs.h:1820 [inline] aio_write+0x346/0x530 fs/aio.c:1573 __io_submit_one fs/aio.c:1834 [inline] io_submit_one+0x104b/0x2eb0 fs/aio.c:1885 __do_sys_io_submit fs/aio.c:1929 [inline] __se_sys_io_submit fs/aio.c:1900 [inline] __x64_sys_io_submit+0x1aa/0x520 fs/aio.c:1900 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4592c9 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:00007fcde4c30c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004592c9 RDX: 00000000200007c0 RSI: 0000000000000007 RDI: 00007fcde4c10000 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcde4c316d4 R13: 00000000004c0645 R14: 00000000004d3008 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..