SB2025100813 - Memory leak in Linux kernel core
Published: October 8, 2025 Updated: October 27, 2025
Security Bulletin ID
SB2025100813
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) Memory leak (CVE-ID: CVE-2023-53669)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the skb_copy_ubufs() function in net/core/skbuff.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/3c77a377877acbaf03cd7caa21d3644a5dd16301
- https://git.kernel.org/stable/c/7e692df3933628d974acb9f5b334d2b3e885e2a6
- https://git.kernel.org/stable/c/7fa93e39fbb0566019c388a8038a4d58552e0910
- https://git.kernel.org/stable/c/9cd62f0ba465cf647c7d8c2ca7b0d99ea0c1328f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.3