PT-2025-52969 · Linux · Linux Kernel

Published 2025-12-24 · Updated 2026-02-12 · CVE-2023-54012

Positive Technologies (AI Summary)

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

Description A flaw exists in the Linux kernel related to Large Receive Offload (LRO) handling for virtual interfaces. When LRO is disabled for team or bonding interfaces, a recursive notification mechanism can lead to a stack overflow. This occurs because updating a virtual interface's feature triggers notifications to its lower interfaces, which then propagate back up, creating a recursive loop. The issue is not an infinite loop, but rather an unexpected recursion due to the notification mechanism. The problem is reproducible by adding multiple team interfaces under a team interface and then disabling LRO on the parent interface.

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

Exploit

Related Identifiers

CVE-2023-54012

SUSE-SU-2026:0473-1

Affected Products

Linux Kernel

References · 318

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54012.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54012 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54012 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54012 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54012 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0473-1 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-54012 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54012 · Security Note
• https://ubuntu.com/security/CVE-2023-54012 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-54012 · Vendor Advisory
• https://bugzilla.suse.com/1255844 · Note
• https://twitter.com/CVEnew/status/2004666665246548215 · Twitter Post
• https://bugzilla.suse.com/1257232 · Note
• https://bugzilla.suse.com/1256580 · Note
• https://bugzilla.suse.com/1256585 · Note