CVE-2026-64056

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Make RX SKB per-port The SKB used to assemble packets from fragments in gmac_rx() is static local, but the Gemini has two ethernet ports, meaning there can be races between the ports on a bad day if a device is using both. Make the RX SKB a per-port variable and carry it over between invocations in the port struct instead. Zero the pointer once we call napi_gro_frags(), on error (after calling napi_free_frags()) or if the port is stopped. Zero it in some place where not strictly necessary just to emphasize what is going on. This was found by Sashiko during normal patch review.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-07-19

Last modified

2026-08-05

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/06937db21ee311ed07eba47954447245041a982d
• https://git.kernel.org/stable/c/27856d533eca3804008695f61c1e4d5ff984196b
• https://git.kernel.org/stable/c/3b249988d774dacf13b203817e971934a42243c4
• https://git.kernel.org/stable/c/67a35e7da7ef9d2f000aa758552a128324c604a0
• https://git.kernel.org/stable/c/6bba24e9ebe6f1c0b356cd471e36bdc7fa434897
• https://git.kernel.org/stable/c/72158ea185b27afae163949b0e86164cb6b64e55
• https://git.kernel.org/stable/c/b6b22824b30e48ce1df3a2e80990f4b8505deb50
• https://git.kernel.org/stable/c/cfd62907f3cdbc3b6da8f49ba907c0390018fe5e