PT-2025-54060 · Linux+1 · Linux Kernel+1

Published 2023-04-20 · Updated 2026-01-01 · CVE-2023-54231

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 exists in the Linux kernel’s networking subsystem, specifically within the libwx component and the wx setup rx resources() function. When the wx alloc page pool() function fails during the execution of wx setup rx resources(), the allocated DMA buffer is not released, leading to a memory leak. The fix involves adding dma free coherent() to the error path to ensure the DMA buffer is freed when allocation fails.

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:2026-04202

CVE-2023-54231

Affected Products

Linux Kernel

Libwx

References · 15

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54231.json · Exploit
• https://bdu.fstec.ru/vul/2026-04202 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-54231 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54231 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-54231 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-54231 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54231 · Security Note
• https://osv.dev/vulnerability/CVE-2023-54231 · Vendor Advisory
• https://git.kernel.org/stable/c/e315e7b83a22043bffee450437d7089ef373cbf6 · Note
• https://twitter.com/CVEnew/status/2006132960517382648 · Twitter Post
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2 · Note
• https://git.kernel.org/linus/e315e7b83a22043bffee450437d7089ef373cbf6 · Note
• https://git.kernel.org/stable/c/2371e1ecd445baf793a74db00ea6b2a2bc13c4c0 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://docs.bell-sw.com/security/cves/CVE-2023-54231 · Note