PT-2025-53056 · Linux · Linux Kernel

Published 2023-05-08 · Updated 2026-02-24 · CVE-2023-54058

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.3.0-rc7

Description The Linux kernel contains a flaw within the arm ffa firmware component. Specifically, the code does not verify the presence of a removal callback function (ffa driver->remove()) before attempting to execute it during driver unregistration. This can lead to a NULL pointer dereference, potentially causing a kernel crash. The issue arises because the driver registration process does not mandate the presence of a .remove callback, and the code fails to check for it before calling it. This can result in an 'Unable to handle kernel NULL pointer dereference' error.

Recommendations Update to a version of the Linux kernel that includes the fix for this issue.

Exploit

Fix

Improper Resource Release

NULL Pointer Dereference

Weakness Enumeration

CWE-404

CWE-476

Related Identifiers

BDU:2026-01248

CVE-2023-54058

SUSE-SU-2026:0263-1

SUSE-SU-2026:0317-1

SUSE-SU-2026:0411-1

SUSE-SU-2026:0617-1

Affected Products

Linux Kernel

References · 979

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54058.json · Exploit
• https://osv.dev/vulnerability/CVE-2023-54058 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54058 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54058 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2023-54058 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0411-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-54058 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0617-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54058 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54058 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0317-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0263-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01248 · Security Note
• https://ubuntu.com/security/CVE-2023-54058 · Vendor Advisory
• https://bugzilla.suse.com/1256349 · Note