SB2025123083 - Memory leak in Linux kernel cifs
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB2025123083
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-2023-54260)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the _smbd_get_connection() function in fs/cifs/smbdirect.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/04b7e13b8a13264282f874db5378fc3d3253cfac
- https://git.kernel.org/stable/c/324c0c34fff1affd436e509325cb46739209704e
- https://git.kernel.org/stable/c/46cd6c639cddba2bd2d810ceb16bb20374ad75b0
- https://git.kernel.org/stable/c/c51ae01104b318bf15f3c5097faba5c72addba7a
- https://git.kernel.org/stable/c/caac205e0d5b44c4c23a10c6c0976d50ebe16ac2
- https://git.kernel.org/stable/c/d303e25887127364a6765eaf7ac68aa2bac518a9
- https://git.kernel.org/stable/c/e9d3401d95d62a9531082cd2453ed42f2740e3fd
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.276
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.173
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.99
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.235
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3