PT-2025-53972 · Linux · Linux Kernel

Published 2022-10-20 · Updated 2025-12-30 · CVE-2022-50854

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

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

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

Description The Linux kernel contains a memory leak in the virtual nci send() function within the NFC subsystem. Specifically, the skb (socket buffer) is not freed, leading to a memory leak reported by kmemleak. This issue can be reproduced using the nci dev tool in the tools/testing/selftests/nci directory. The backtrace indicates the issue originates from memory allocation within the NFC device up process.

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:2026-01140

CVE-2022-50854

Affected Products

Linux Kernel

References · 18

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50854.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-50854 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50854 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50854 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01140 · Security Note
• https://ubuntu.com/security/CVE-2022-50854 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50854 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50854 · Security Note
• https://osv.dev/vulnerability/CVE-2022-50854 · Vendor Advisory
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.7 · Note
• https://twitter.com/CVEnew/status/2006132941663953277 · Twitter Post
• https://lore.kernel.org/linux-cve-announce/2025123045-CVE-2022-50854-2aec@gregkh · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://git.kernel.org/stable/c/2c46a9a5f0b1c7341aa67667801079f3ff571678 · Note
• https://git.kernel.org/stable/c/88e879c9f59511174ef0ab1a3c9c83e2dbf8a213 · Note