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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-74708

xsk: validate launch-time metadata size

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 to < af511afa1d2977f384044df78d6fbf9fba653f7aaffected
  • ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 to < bc63d47611c07b0d5d655fe1a590861931527920affected
  • ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 to < 439ce2dddf3d22129b9113a7881637256a35e936affected
  • d9d736c416c9a85f84e15435ba82a177262e745baffected
  • 6.14.2 to < 6.15affected

Linux Linux

Default version status: affected

  • 6.15affected
  • 0 to < 6.15unaffected
  • 6.18.45 to ≤ 6.18.*unaffected
  • 7.1.9 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References