PT-2025-54066 · Linux+1 · Linux Kernel+1

Published 2023-01-01 · Updated 2026-04-20 · CVE-2023-54237

Positive Technologies (AI Summary)

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

Description The Linux kernel contains a flaw in the networking component, specifically within the smc (SMC) subsystem. A potential panic can occur due to a lack of protection in the smc llc srv add link() function. This allows the function to add a new link to a link group without proper safeguards, disrupting the security environment protected by llc conf mutex. The issue arises when the server attempts to create a second link.

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

Exploit

Related Identifiers

CVE-2023-54237

RHSA-2025:20518

Affected Products

Debian

Linux Kernel

References · 19

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54237.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-54237 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2023-54237 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-54237 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-54237 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54237 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54237 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2023-54237 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-54237 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54237 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54237 · Vendor Advisory
• https://git.kernel.org/stable/c/e40b801b3603a8f90b46acbacdea3505c27f01c0 · Note
• https://git.kernel.org/stable/c/f2f46de98c11d41ac8d22765f47ba54ce5480a5b · Note
• https://docs.bell-sw.com/security/cves/CVE-2023-54237 · Note
• https://git.kernel.org/stable/c/0c764cc271d3aa6528ae1b3394babf34ac01f775 · Note