TLDRVuln - Cybersecurity Vulnerabilities Made Simple

In the Linux kernel, the following vulnerability has been resolved:

inotify: Avoid reporting event with invalid wd

When inotify_freeing_mark() races with inotify_handle_inode_event() it

can happen that inotify_handle_inode_event() sees that i_mark->wd got

already reset to -1 and reports this value to userspace which can

confuse the inotify listener. Avoid the problem by validating that wd is

sensible (and pretend the mark got removed before the event got

generated otherwise).