PT-2025-26066 · Linux+2 · Linux Kernel+2

Published 2022-06-25 · Updated 2025-07-28 · CVE-2022-50140

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:A/AC:L/Au:S/C:N/I:N/A:C

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

Description A memory leak issue has been identified in the Linux kernel, specifically in the memstick/ms block component. The erased blocks bitmap is allocated at the same time as the used blocks bitmap but is never freed, likely due to an oversight. This issue has been resolved by adding the corresponding bitmap free() in msb data clear().

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

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

BDU:2026-03124

CVE-2022-50140

SUSE-SU-2025:02264-1

SUSE-SU-2025:02308-1

SUSE-SU-2025:02320-1

SUSE-SU-2025:02321-1

SUSE-SU-2025:02322-1

SUSE-SU-2025:02537-1

SUSE-SU-2025:2264-1

SUSE-SU-2025_02264-1

SUSE-SU-2025_02308-1

SUSE-SU-2025_02537-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 609

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50140.json · Exploit
• https://git.kernel.org/stable/c/9260a154b3b5e387dbceec7c0ac441470646bc6f · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50140 · Security Note
• https://git.kernel.org/stable/c/961d7d12080fe70847f944d656e36cd0dd0214ba · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02308-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50140 · Vendor Advisory
• https://git.kernel.org/stable/c/39be95d1ff7b44c1e969af72ba9da7332dfcc1da · Patch
• https://osv.dev/vulnerability/CVE-2022-50140 · Vendor Advisory
• https://git.kernel.org/stable/c/54eb7a55be6779c4d0c25eaf5056498a28595049 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-50140 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02537-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50140 · Vendor Advisory
• https://git.kernel.org/stable/c/9d8b911fe3c3ed788c66edba7c90e32a4a7a5f53 · Patch
• https://git.kernel.org/stable/c/16e07966638717416abf45393d6a80a5a1034429 · Patch
• https://git.kernel.org/stable/c/37958980eb4cd71ae594ace093c11b6a91e165e8 · Patch