PT-2024-32719 · Linux+8 · Linux Kernel+8
Published
2024-06-05
·
Updated
2026-03-14
·
CVE-2024-47660
CVSS v3.1
4.7
Medium
| Vector | AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue arises in the Linux kernel when directories have many dentries, causing the
fsnotify update child dentry flags() function to take significant time under inode->i lock. This leads to contention on the lock when removing a watch from a directory, resulting in softlockup reports from users. The problem is fixed by calling fsnotify update children dentry flags() to set PARENT WATCHED flags only when a parent starts watching children and clearing false positive PARENT WATCHED flags lazily in fsnotify parent() for each accessed child.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Improper Locking
Race Condition
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Related Identifiers
Affected Products
Alt Linux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu