SB2025100455 - Memory leak in Linux kernel x86 xen
Published: October 4, 2025 Updated: October 27, 2025
Security Bulletin ID
SB2025100455
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-2022-50495)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the cpu_bringup_and_idle() and xen_smp_intr_init_pv() functions in arch/x86/xen/smp_pv.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/23aef94eea714b721546c0c49a324a8da8d00fb5
- https://git.kernel.org/stable/c/69143f60868b3939ddc89289b29db593b647295e
- https://git.kernel.org/stable/c/8b6d78bb4ece809c425f96a47ca9b69385ba94bb
- https://git.kernel.org/stable/c/9209d2cbf5845b8bf8e722015d86f65a9d2bc76a
- https://git.kernel.org/stable/c/ec88254208dd01fa1646e939047d382b216340ac
- https://git.kernel.org/stable/c/f698f88f042c6a19bbbac6c84782039a75e7f349
- https://git.kernel.org/stable/c/fc134c355b5299495b14a54dd9bb7af8a646cb7c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163