EXT4-fs error (device loop4): ext4_quota_enable:6978: comm syz-executor.4: Bad quota inode: 3, type: 0 EXT4-fs warning (device loop4): ext4_enable_quotas:7019: Failed to enable quota tracking (type=0, err=-117, ino=3). Please run e2fsck to fix. EXT4-fs (loop4): mount failed ================================================================== BUG: KCSAN: data-race in inotify_handle_inode_event / inotify_remove_from_idr write to 0xffff888104e155e8 of 4 bytes by task 4206 on cpu 0: inotify_remove_from_idr+0x106/0x310 fs/notify/inotify/inotify_user.c:511 inotify_ignored_and_remove_idr+0x34/0x60 fs/notify/inotify/inotify_user.c:532 inotify_freeing_mark+0x1d/0x30 fs/notify/inotify/inotify_fsnotify.c:133 fsnotify_free_mark fs/notify/mark.c:490 [inline] fsnotify_destroy_mark+0x17a/0x190 fs/notify/mark.c:499 __do_sys_inotify_rm_watch fs/notify/inotify/inotify_user.c:817 [inline] __se_sys_inotify_rm_watch+0xf7/0x170 fs/notify/inotify/inotify_user.c:794 __x64_sys_inotify_rm_watch+0x31/0x40 fs/notify/inotify/inotify_user.c:794 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888104e155e8 of 4 bytes by task 13968 on cpu 1: inotify_handle_inode_event+0x17e/0x2c0 fs/notify/inotify/inotify_fsnotify.c:113 fsnotify_handle_inode_event+0x19b/0x1f0 fs/notify/fsnotify.c:264 fsnotify_handle_event fs/notify/fsnotify.c:316 [inline] send_to_group fs/notify/fsnotify.c:364 [inline] fsnotify+0x101c/0x1150 fs/notify/fsnotify.c:570 __fsnotify_parent+0x307/0x480 fs/notify/fsnotify.c:230 fsnotify_parent include/linux/fsnotify.h:77 [inline] fsnotify_file include/linux/fsnotify.h:99 [inline] fsnotify_close include/linux/fsnotify.h:341 [inline] __fput+0x4b0/0x570 fs/file_table.c:307 ____fput+0x15/0x20 fs/file_table.c:349 task_work_run+0x123/0x160 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd1/0xe0 kernel/entry/common.c:171 exit_to_user_mode_prepare+0x6c/0xb0 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x0000187b -> 0xffffffff Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 13968 Comm: syz-executor.4 Not tainted 6.3.0-syzkaller-13164-g78b421b6a7c6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 ==================================================================