SB20251230216 - NULL pointer dereference in Linux kernel sysv
Published: December 30, 2025 Updated: December 30, 2025
Security Bulletin ID
SB20251230216
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) NULL pointer dereference (CVE-ID: CVE-2023-54264)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the alloc_branch() function in fs/sysv/itree.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/0a44ceba77c3267f8505dda102a59367dc24caee
- https://git.kernel.org/stable/c/1416eebaad80bdc85ad9f97f27242011b031e2a9
- https://git.kernel.org/stable/c/7f740bc696d4617f8ee44565e8ac0d36278a1e91
- https://git.kernel.org/stable/c/afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635
- https://git.kernel.org/stable/c/baa60c66a310c50785289b0ede6fdce8ec3219c7
- https://git.kernel.org/stable/c/e28f376dd8dfcc4e880ac101184132bc08703f6e
- https://git.kernel.org/stable/c/e976988bc245ec3768cc0f76bed7d05488a7dd0f
- https://git.kernel.org/stable/c/ea2b62f305893992156a798f665847e0663c9f41
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.322
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.291
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.190
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.126
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.253
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.45
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5