CVE-2026-64056

Description

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.

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