CVE-2024-44999

A use-after-free vulnerability was found in the Linux kernel's GPRS Tunneling Protocol ( GTP ) driver, specifically in the gtp_dev_xmit() function. This issue is due to the IPv4 or IPv6 headers not being properly pulled into the skb->head before being accessed. This led to the use of uninitialized values, as reported by Kernel Memory Sanitizer (KMSAN).

This issue is classified as Moderate severity rather than Important due to the specific nature of the uninitialized value problem. The vulnerability involves the potential use of uninitialized memory in network header fields, which, while potentially exposing sensitive data or causing erratic behavior, generally requires a specific set of conditions to be exploited. The pskb_inet_may_pull() function addresses this by ensuring that necessary headers are correctly initialized before use.

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.