PT-2025-37499 · Linux+1 · Linux Kernel+1

Published 2025-09-15 · Updated 2025-11-24 · CVE-2022-50245

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description The Linux kernel contains a use-after-free (UAF) issue within the rapidio component. Specifically, a failure in the kfifo alloc() function during mport cdev open() can lead to a UAF condition. This occurs because the priv structure remains in the chdev->file list even after being freed, potentially causing issues during list traversal. The kfifo alloc() function is responsible for allocating a kernel FIFO (First-In, First-Out) buffer. A UAF vulnerability arises when memory is freed and then subsequently accessed, leading to unpredictable behavior or potential security exploits.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2022-50245

Affected Products

Astra Linux

Linux Kernel

References · 21

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50245.json · Exploit
• https://git.kernel.org/stable/c/2dfd60724d271a6ab99f93f40f38f2ced1ddbb87 · Patch
• https://git.kernel.org/stable/c/cb87af2c19c0993f6e21f75b963a5599c5a73e76 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50245 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50245 · Vendor Advisory
• https://git.kernel.org/stable/c/2ba06e57f933f0eac242e8b389433da1cc00d4d5 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-50245 · Vendor Advisory
• https://git.kernel.org/stable/c/2f5cc7fd73fd6253cc71214f0dd499cc62feb469 · Patch
• https://git.kernel.org/stable/c/2a6c75adf8192f07ddcdd4a1a13488c890a73919 · Patch
• https://cve.org/CVERecord?id=CVE-2022-50245 · Security Note
• https://osv.dev/vulnerability/CVE-2022-50245 · Vendor Advisory
• https://git.kernel.org/stable/c/311b488405ac45af46756b1c8f1d27007b68b07e · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50245 · Security Note
• https://git.kernel.org/stable/c/5ee850645e42f541ce1ea8130c2b27cc495f965c · Patch
• https://git.kernel.org/stable/c/a253dde0403a153075ffb254f6f7b2635e49e97a · Patch