Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xsk: validate launch-time metadata size Launch-time metadata extends beyond the first 16 bytes of struct xsk_tx_metadata. Reject the request when the registered metadata area does not contain the complete field. Snapshot the validated flags for the generic transmit path and use that snapshot for request and completion processing, avoiding inconsistent decisions if user space changes the flags concurrently. Note that only xsk_skb_metadata is properly using the flags, __xsk_buff_get_metadata ignores them. Next commits address that.
References
- https://git.kernel.org/stable/c/439ce2dddf3d22129b9113a7881637256a35e936
- https://git.kernel.org/stable/c/af511afa1d2977f384044df78d6fbf9fba653f7a
- https://git.kernel.org/stable/c/bc63d47611c07b0d5d655fe1a590861931527920
FAQ
What is CVE-2026-74708?
CVE-2026-74708 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: xsk: validate launch-time metadata size Launch-time metadata extends beyond the first 16 bytes of struct xsk_tx_metadata. Reject t...
How severe is CVE-2026-74708?
CVSS scoring is not yet available for CVE-2026-74708. Check NVD for updates.
Is there a patch for CVE-2026-74708?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.