CVE-2026-74710

Summary

In the Linux kernel, the following vulnerability has been resolved:

xsk: require at least 16 bytes of TX metadata

AF_XDP accepts a TX metadata length as small as eight bytes, but every supported request needs the flags plus at least one eight-byte request field. Such short metadata also lets the kernel read beyond the registered area.

Require 16 bytes rather than sizeof(struct xsk_tx_metadata) to preserve compatibility with applications that do not use launch-time metadata.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux341ac980eab90ac1f6c22ee9f9da83ed9604d899 < 21b8536aee819792f1b4b38b9aacf2a073025d49affected
LinuxLinux341ac980eab90ac1f6c22ee9f9da83ed9604d899 < 642c6e73fce17fdca93a5793c4d22359fda866d7affected
LinuxLinux341ac980eab90ac1f6c22ee9f9da83ed9604d899 < cfb9d2976b277e554e28c165e3eff4b4a8ea10bdaffected
LinuxLinux341ac980eab90ac1f6c22ee9f9da83ed9604d899 < 1bb30b181d9f0484e141f8411e15ed906d5c6780affected
LinuxLinux6.8affected
LinuxLinux0 < 6.8unaffected
LinuxLinux6.12.104 <= 6.12.*unaffected
LinuxLinux6.18.45 <= 6.18.*unaffected
LinuxLinux7.1.9 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References