CVE-2026-74708
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.
How to fix
- Linux Linuxaf511afa1d2977f384044df78d6fbf9fba653f7a, bc63d47611c07b0d5d655fe1a590861931527920, 439ce2dddf3d22129b9113a7881637256a35e936, 6.15 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 ≤ v < af511afa1d2977f384044df78d6fbf9fba653f7a, ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 ≤ v < bc63d47611c07b0d5d655fe1a590861931527920, ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 ≤ v < 439ce2dddf3d22129b9113a7881637256a35e936, d9d736c416c9a85f84e15435ba82a177262e745b, 6.14.2 ≤ v < 6.15, 6.15 | af511afa1d2977f384044df78d6fbf9fba653f7a, bc63d47611c07b0d5d655fe1a590861931527920, 439ce2dddf3d22129b9113a7881637256a35e936, 6.15 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.