ext4 filesystem being mounted at /root/syzkaller-testdir2533308588/syzkaller.dRqCbr/5384/bus supports timestamps until 2038-01-19 (0x7fffffff) EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. ================================================================== BUG: KCSAN: data-race in fsnotify_detach_mark / inotify_handle_inode_event write to 0xffff888103cad454 of 4 bytes by task 28150 on cpu 1: fsnotify_detach_mark+0xe0/0x190 fs/notify/mark.c:455 fsnotify_destroy_mark+0x97/0x190 fs/notify/mark.c:497 __do_sys_inotify_rm_watch fs/notify/inotify/inotify_user.c:817 [inline] __se_sys_inotify_rm_watch+0xfd/0x180 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:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b read to 0xffff888103cad454 of 4 bytes by task 30955 on cpu 0: inotify_handle_inode_event+0x2c5/0x310 fs/notify/inotify/inotify_fsnotify.c:132 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:100 [inline] fsnotify_close include/linux/fsnotify.h:342 [inline] __fput+0x1da/0x630 fs/file_table.c:380 __fput_sync+0x44/0x50 fs/file_table.c:475 __do_sys_close fs/open.c:1590 [inline] __se_sys_close+0xfa/0x1a0 fs/open.c:1575 __x64_sys_close+0x1f/0x30 fs/open.c:1575 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b value changed: 0x00000003 -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 30955 Comm: syz-executor.2 Not tainted 6.7.0-rc5-syzkaller-00014-g26aff849438c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 ================================================================== loop2: detected capacity change from 0 to 512 EXT4-fs error (device loop2): ext4_do_update_inode:5105: inode #3: comm syz-executor.2: corrupted inode contents EXT4-fs error (device loop2): ext4_dirty_inode:5965: inode #3: comm syz-executor.2: mark_inode_dirty error EXT4-fs error (device loop2): ext4_do_update_inode:5105: inode #3: comm syz-executor.2: corrupted inode contents EXT4-fs error (device loop2): __ext4_ext_dirty:202: inode #3: comm syz-executor.2: mark_inode_dirty error Quota error (device loop2): write_blk: dquota write failed Quota error (device loop2): qtree_write_dquot: Error -117 occurred while creating quota EXT4-fs (loop2): 1 orphan inode deleted EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. ext4 filesystem being mounted at /root/syzkaller-testdir2533308588/syzkaller.dRqCbr/5384/file1 supports timestamps until 2038-01-19 (0x7fffffff)