CVE-2024-26707
Description
A vulnerability in the Linux kernel affects the High-availability Seamless Redundancy (HSR) protocol. The issue was identified when a warning (WARN_ONCE()) was triggered due to failed resource allocation for skb in the hsr_init_skb() function. The WARN_ONCE() was initially used to log this failure, but it was not deemed helpful in resolving it. Instead, the kernel maintainers switched to using netdev_warn_once() to better handle the failure and avoid excessive warning reports.
Statement
This vulnerability, though not Critical, can cause issues in network-related functions, particularly in HSR where frames need to be supervised and announced.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 0 | 5.5 | N/A |
| Attack Vector | Local | Local | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | Low | Low | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | None | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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