EXT4-fs (loop2): group descriptors corrupted! ================================================================== BUG: KCSAN: data-race in fsnotify_detach_mark / fsnotify_handle_inode_event write to 0xffff888103fff044 of 4 bytes by task 27397 on cpu 0: fsnotify_detach_mark+0xe1/0x190 fs/notify/mark.c:455 fsnotify_destroy_mark+0x9a/0x1a0 fs/notify/mark.c:497 __do_sys_inotify_rm_watch fs/notify/inotify/inotify_user.c:816 [inline] __se_sys_inotify_rm_watch+0xfd/0x180 fs/notify/inotify/inotify_user.c:793 __x64_sys_inotify_rm_watch+0x31/0x40 fs/notify/inotify/inotify_user.c:793 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 read to 0xffff888103fff044 of 4 bytes by task 29291 on cpu 1: fsnotify_handle_inode_event+0xf6/0x1f0 fs/notify/fsnotify.c:262 fsnotify_handle_event fs/notify/fsnotify.c:322 [inline] send_to_group fs/notify/fsnotify.c:370 [inline] fsnotify+0x1023/0x1160 fs/notify/fsnotify.c:576 __fsnotify_parent+0x285/0x370 fs/notify/fsnotify.c:236 fsnotify_parent include/linux/fsnotify.h:83 [inline] fsnotify_file include/linux/fsnotify.h:106 [inline] fsnotify_close include/linux/fsnotify.h:387 [inline] __fput+0x1ff/0x660 fs/file_table.c:408 __fput_sync+0x44/0x60 fs/file_table.c:507 __do_sys_close fs/open.c:1556 [inline] __se_sys_close+0x101/0x1b0 fs/open.c:1541 __x64_sys_close+0x1f/0x30 fs/open.c:1541 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 value changed: 0x00000003 -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 29291 Comm: syz-executor.2 Tainted: G W 6.8.0-syzkaller-11405-g906a93befec8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 ==================================================================