by Kastro CVE-2026-64056
Linux Linux — net: ethernet: cortina: Make RX SKB per-port
Description · from the CVE record
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.
Affected
ProductAffectedFixed inSource
Linux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 – < 27856d533eca3804008695f61c1e4d5ff984196b27856d533eca3804008695f61c1e4d5ff984196bCNA
Linux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 – < b6b22824b30e48ce1df3a2e80990f4b8505deb50b6b22824b30e48ce1df3a2e80990f4b8505deb50CNA
Linux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 – < 6bba24e9ebe6f1c0b356cd471e36bdc7fa4348976bba24e9ebe6f1c0b356cd471e36bdc7fa434897CNA
Linux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 – < 3b249988d774dacf13b203817e971934a42243c43b249988d774dacf13b203817e971934a42243c4CNA
Linux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 – < 72158ea185b27afae163949b0e86164cb6b64e5572158ea185b27afae163949b0e86164cb6b64e55CNA
Linux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 – < cfd62907f3cdbc3b6da8f49ba907c0390018fe5ecfd62907f3cdbc3b6da8f49ba907c0390018fe5eCNA
Linux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 – < 67a35e7da7ef9d2f000aa758552a128324c604a067a35e7da7ef9d2f000aa758552a128324c604a0CNA
Linux4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 – < 06937db21ee311ed07eba47954447245041a982d06937db21ee311ed07eba47954447245041a982dCNA
Linux4.16–CNA
Scores by source
Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H