PT-2025-8464 · Linux+2 · Linux Kernel+2

Published 2022-01-01 · Updated 2026-05-26 · CVE-2022-49531

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 in the Linux kernel has been resolved. The issue is related to the loop driver, where the lo device stored in the gendisk private data may not be valid until the gendisk is freed. The loop driver currently takes significant effort to prevent a device from being freed while still in use, but this will be relaxed to fix a potential deadlock.

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

Exploit

DoS

Improper Locking

Weakness Enumeration

CWE-667

Related Identifiers

AZL-58732

BDU:2026-02059

CVE-2022-49531

RHSA-2022:8267

RHSA-2022_8267

Affected Products

Debian

Linux Kernel

Red Hat

References · 22

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49531.json · Exploit
• https://bdu.fstec.ru/vul/2026-02059 · Security Note
• https://osv.dev/vulnerability/AZL-58732 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49531 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2022-49531 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49531 · Security Note
• https://git.kernel.org/stable/c/aadd1443aae7fe8956e3b11157827067f034406a · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49531 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49531 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49531 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49531 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49531 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2022-49531 · Vendor Advisory
• https://git.kernel.org/stable/c/d2c7f56f8b5256d57f9e3fc7794c31361d43bdd9 · Patch
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note