SB2024101057 - Improper locking in Linux kernel notify
Published: October 10, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024101057
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2024-47660)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __fsnotify_recalc_mask() function in fs/notify/mark.c, within the fsnotify_sb_delete(), __fsnotify_update_child_dentry_flags() and __fsnotify_parent() functions in fs/notify/fsnotify.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3f3ef1d9f66b93913ce2171120d9226b55acd41d
- https://git.kernel.org/stable/c/f9a48bc3dd9099935751458a5bbbea4b7c28abc8
- https://git.kernel.org/stable/c/d8c42405fc3507cc43ba7e4986a773c3fc633f6e
- https://git.kernel.org/stable/c/fc1b1e135c3f72382f792e6c319fc088d5523ad5
- https://git.kernel.org/stable/c/7ef1d2e240c32b1f337a37232d037b07e3919e1a
- https://git.kernel.org/stable/c/172e422ffea20a89bfdc672741c1aad6fbb5044e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.226
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.167
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.109
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.50