#VU108226 Use-after-free in Linux kernel - CVE-2022-49882

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Main Vulnerability Database Vulnerabilities #VU108226

#VU108226 Use-after-free in Linux kernel - CVE-2022-49882

Published: May 2, 2025 / Updated: May 10, 2025


Vulnerability identifier: #VU108226
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49882
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the kvm_gfn_to_pfn_cache_check(), kvm_gfn_to_pfn_cache_refresh(), kvm_gpc_activate() and EXPORT_SYMBOL_GPL() functions in virt/kvm/pfncache.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.

External links