PT-2025-8246 · Linux+2 · Linux Kernel+2

Xiaoke Wang · Published 2022-04-05 · Updated 2025-04-14 · CVE-2022-49312

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 potential memory leak was found in the Linux kernel, specifically in the r871xu drv init() function. This issue occurs when r8712 init drv sw() fails, causing memory allocated by r8712 alloc io queue() in r8712 usb dvobj init() to not be properly released. The memory leak is due to the lack of a call to r8712 free io queue() in r8712 usb dvobj deinit(). To fix this, r8712 free io queue() should be called in r8712 usb dvobj deinit(). Additionally, the code has been modified to move r8712 usb dvobj deinit() into r871xu dev remove() and remove r8712 free io queue() from r8712 free drv sw() for better code understanding.

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:2026-02647

CVE-2022-49312

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1241-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 1335

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49312.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49312 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://git.kernel.org/stable/c/8eb42d6d10f8fe509117859defddf9e72b4fa4d0 · Patch
• https://osv.dev/vulnerability/CVE-2022-49312 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49312 · Security Note
• https://git.kernel.org/stable/c/205e039fead72e87ad2838f5e649a4c4834f648b · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49312 · Security Note
• https://git.kernel.org/stable/c/5a89a92efc342dd7c44b6056da87debc598f9c73 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-49312 · Vendor Advisory
• https://git.kernel.org/stable/c/a2882b8baad068d21c99fb2ab5a85a2bdbd5b834 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://git.kernel.org/stable/c/7288ff561de650d4139fab80e9cb0da9b5b32434 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49312 · Vendor Advisory