PT-2025-18491 · Linux+2 · Linux Kernel+2

Published 2023-11-07 · Updated 2025-11-07 · CVE-2022-49774

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description A vulnerability has been resolved in the Linux kernel related to KVM: x86/xen. The issue concerns the handling of eventfd errors in the kvm xen eventfd assign() function. Specifically, eventfd ctx put() should not be called in case of an error. Instead, a new goto target is introduced to handle the error correctly.

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

Exploit

Related Identifiers

CVE-2022-49774

RHSA-2023:6583

RHSA-2023_6583

Affected Products

Astra Linux

Linux Kernel

Red Hat

References · 15

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49774.json · Exploit
• https://osv.dev/vulnerability/CVE-2022-49774 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49774 · Vendor Advisory
• https://git.kernel.org/stable/c/d76f46f47dfde220712d1420ee5dbc546c8fc674 · Patch
• https://ubuntu.com/security/CVE-2022-49774 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49774 · Security Note
• https://git.kernel.org/stable/c/7353633814f6e5b4899fb9ee1483709d6bb0e1cd · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49774 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49774 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49774 · Security Note
• https://lore.kernel.org/linux-cve-announce/2025050116-CVE-2022-49774-e5d3@gregkh/T · Note
• https://git.kernel.org/linus/7353633814f6e5b4899fb9ee1483709d6bb0e1cd · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://t.me/cveNotify/142134 · Telegram Post
• https://twitter.com/CVEnew/status/1918014658209866217 · Twitter Post