CVE-2024-38538
kernel: net: bridge: xmit: make sure we have at least eth header len bytes
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 19, 2024
Updated · November 2, 2026
Description
A vulnerability was found in the Linux kernel in the net: bridge component, where the xmit function in the bridge device could trigger an uninitialized value error if a short skb (less than the required ETH_HLEN bytes) is sent. This condition could cause unexpected behavior due to insufficient checks before pulling data from the packet, potentially leading to data inconsistency.
Statement
This vulnerability in is classified as moderate severity because it requires local access and specific packet manipulation to exploit. While it may impact system stability, it does not broadly compromise system security, as its effects remain limited to certain packet-handling scenarios.
CVSS score applicability
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
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.
CVSS / CWE
CVSS 3.1 · 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-99 · Improper Control of Resource Identifiers