CVE-2024-47660
kernel: fsnotify: clear PARENT_WATCHED flags lazily
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 9, 2024
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's fsnotify subsystem. When a parent directory stops watching its children, a race condition can occur during the clearing of PARENT_WATCHED flags. This contention on the inode->i_lock can lead to system unresponsiveness or softlockups, effectively causing a Denial of Service (DoS) for a local user.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')