CVE-2026-74708
xsk: validate launch-time metadata size
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 22, 2026 |
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Affected Versions
Linux / Linux
ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 < af511afa1d2977f384044df78d6fbf9fba653f7a ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 < bc63d47611c07b0d5d655fe1a590861931527920 ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 < 439ce2dddf3d22129b9113a7881637256a35e936 d9d736c416c9a85f84e15435ba82a177262e745b 6.14.2 < 6.15
Linux / Linux
6.15