PT-2024-6125 · Linux+2 · Linux Kernel+2

Published 2022-01-26 · Updated 2024-10-30 · CVE-2022-48764

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to a memory leak in the KVM subsystem of the Linux kernel. The memory leak occurs due to the incorrect freeing of the kvm cpuid entry2 array. This can be exploited to cause a denial of service. The vulnerability is associated with the kvm set cpuid() function and the KVM SET CPUID and KVM SET CPUID2 ioctl commands.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Memory Leak

Weakness Enumeration

CWE-476

CWE-401

Related Identifiers

BDU:2024-07039

BDU:2025-03198

CVE-2022-48764

Affected Products

Astra Linux

Linux Kernel

Red Os

References · 20

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48764.json · Exploit
• https://git.kernel.org/stable/c/b9ee734a14bb685b2088f2176d82b34cb4e30dbc · Patch
• https://git.kernel.org/stable/c/811f95ff95270e6048197821434d9301e3d7f07c · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-48764 · Security Note
• https://osv.dev/vulnerability/CVE-2022-48764 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-48764 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-03198 · Security Note
• https://bdu.fstec.ru/vul/2024-07039 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-48764 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-48764 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-48764 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-48764 · Vendor Advisory
• https://lore.kernel.org/linux-cve-announce/2024062009-CVE-2022-48764-6de1@gregkh · Note
• https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.5 · Note
• https://access.redhat.com/security/cve/CVE-2022-48764 · Note