PT-2025-37637 · Linux+2 · Linux Kernel+2

Published 2022-01-01 · Updated 2026-03-14 · CVE-2022-50335

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

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

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

Description A flaw exists in the Linux kernel's 9p protocol implementation where the reference count of a request is not properly initialized. Specifically, when a new request is allocated and reused, the refcount may be zero, leading to uninitialized usage. If p9 read work receives a response before the refcount is initialized, it can result in the use of a bad request data structure. This can lead to memory corruption and potentially other issues.

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

Exploit

Use of Uninitialized Resource

Use After Free

Weakness Enumeration

CWE-908

CWE-416

Related Identifiers

BDU:2026-03777

CVE-2022-50335

Affected Products

Astra Linux

Debian

Linux Kernel

References · 20

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50335.json · Exploit
• https://ubuntu.com/security/CVE-2022-50335 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-03777 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2022-50335 · Vendor Advisory
• https://git.kernel.org/stable/c/1cabce56626a61f4f02452cba61ad4332a4b73f8 · Patch
• https://git.kernel.org/stable/c/73c47b3123b351de2d3714a72a336c0f72f203af · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50335 · Security Note
• https://git.kernel.org/stable/c/967fc34f297e40fd2e068cf6b0c3eb4916228539 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-50335 · Vendor Advisory
• https://git.kernel.org/stable/c/26273ade77f54716e30dfd40ac6e85ceb54ac0f9 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50335 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50335 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50335 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50335 · Vendor Advisory
• https://twitter.com/CVEnew/status/1967608530212708659 · Twitter Post