PT-2025-40211 · Linux+1 · Linux Kernel+1

Published 2023-08-09 · Updated 2025-11-19 · CVE-2023-53504

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 A use-after-free issue was addressed in the RDMA/bnxt re component of the Linux kernel. The problem stemmed from an incorrect order of operations during device deallocation, specifically related to the ib device unalloc() function. Calling ib dealloc device() before completing device cleanup could lead to a use-after-free condition.

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

Exploit

Improper Resource Release

Use After Free

Weakness Enumeration

CWE-404

CWE-416

CWE-664

Related Identifiers

BDU:2025-12791

CVE-2023-53504

SUSE-SU-2025:03600-1

SUSE-SU-2025:03634-1

SUSE-SU-2025:20851-1

SUSE-SU-2025:20861-1

SUSE-SU-2025:20870-1

SUSE-SU-2025:20898-1

SUSE-SU-2025:3751-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4141-1

Affected Products

Linux Kernel

Suse

References · 1405

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53504.json · Exploit
• https://bdu.fstec.ru/vul/2025-12791 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-53504 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53504 · Security Note
• https://git.kernel.org/stable/c/5363fc488da579923edf6a2fdca3d3b651dd800b · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:20851-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4141-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20861-1 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53504 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20870-1 · Vendor Advisory
• https://git.kernel.org/stable/c/c95863f6d970ef968e7c1f3c481f72a4b0734654 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:4057-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53504 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53504 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53504 · Vendor Advisory