CVE-2025-40279

A flaw was found in the Linux kernel. A local user could exploit a vulnerability in the tcf_connmark_dump() function, where a partially initialized structure leads to uninitialized padding bytes being copied into a netlink message. This information disclosure could allow an attacker to gain access to sensitive kernel memory contents.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.