SB20250226126 - Memory leak in Linux kernel kvm svm
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226126
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-2022-49556)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the sev_launch_measure() and __sev_dbg_decrypt_user() functions in arch/x86/kvm/svm/sev.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/401bef1f95de92c3a8c6eece46e02fa88d7285ee
- https://git.kernel.org/stable/c/57a01725339f9d82b099102ba2751621b1caab93
- https://git.kernel.org/stable/c/bbdcc644b59e01e98c68894a9fab42b9687f42b0
- https://git.kernel.org/stable/c/d22d2474e3953996f03528b84b7f52cc26a39403
- https://git.kernel.org/stable/c/d8fdb4b24097472ff6b3c0559448200d420b1418
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.45