{"id":"CVE-2026-64056","summary":"net: ethernet: cortina: Make RX SKB per-port","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: cortina: Make RX SKB per-port\n\nThe SKB used to assemble packets from fragments in gmac_rx()\nis static local, but the Gemini has two ethernet ports, meaning\nthere can be races between the ports on a bad day if a device\nis using both.\n\nMake the RX SKB a per-port variable and carry it over between\ninvocations in the port struct instead.\n\nZero the pointer once we call napi_gro_frags(), on error (after\ncalling napi_free_frags()) or if the port is stopped.\n\nZero it in some place where not strictly necessary just to\nemphasize what is going on.\n\nThis was found by Sashiko during normal patch review.","modified":"2026-07-21T03:47:49.140716379Z","published":"2026-07-19T15:39:37.673Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64056.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/06937db21ee311ed07eba47954447245041a982d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/27856d533eca3804008695f61c1e4d5ff984196b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3b249988d774dacf13b203817e971934a42243c4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/67a35e7da7ef9d2f000aa758552a128324c604a0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6bba24e9ebe6f1c0b356cd471e36bdc7fa434897"},{"type":"WEB","url":"https://git.kernel.org/stable/c/72158ea185b27afae163949b0e86164cb6b64e55"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b6b22824b30e48ce1df3a2e80990f4b8505deb50"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cfd62907f3cdbc3b6da8f49ba907c0390018fe5e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64056.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64056"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88"},{"fixed":"27856d533eca3804008695f61c1e4d5ff984196b"},{"fixed":"b6b22824b30e48ce1df3a2e80990f4b8505deb50"},{"fixed":"6bba24e9ebe6f1c0b356cd471e36bdc7fa434897"},{"fixed":"3b249988d774dacf13b203817e971934a42243c4"},{"fixed":"72158ea185b27afae163949b0e86164cb6b64e55"},{"fixed":"cfd62907f3cdbc3b6da8f49ba907c0390018fe5e"},{"fixed":"67a35e7da7ef9d2f000aa758552a128324c604a0"},{"fixed":"06937db21ee311ed07eba47954447245041a982d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64056.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.16.0"},{"fixed":"5.10.258"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.209"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.175"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.142"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.92"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.34"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64056.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}