{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64056","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T07:54:57.030Z","datePublished":"2026-07-19T15:39:37.673Z","dateUpdated":"2026-07-20T13:42:53.741Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-07-20T13:42:53.741Z"},"descriptions":[{"lang":"en","value":"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."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cortina/gemini.c"],"versions":[{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","lessThan":"27856d533eca3804008695f61c1e4d5ff984196b","status":"affected","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","lessThan":"b6b22824b30e48ce1df3a2e80990f4b8505deb50","status":"affected","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","lessThan":"6bba24e9ebe6f1c0b356cd471e36bdc7fa434897","status":"affected","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","lessThan":"3b249988d774dacf13b203817e971934a42243c4","status":"affected","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","lessThan":"72158ea185b27afae163949b0e86164cb6b64e55","status":"affected","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","lessThan":"cfd62907f3cdbc3b6da8f49ba907c0390018fe5e","status":"affected","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","lessThan":"67a35e7da7ef9d2f000aa758552a128324c604a0","status":"affected","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","lessThan":"06937db21ee311ed07eba47954447245041a982d","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cortina/gemini.c"],"versions":[{"version":"4.16","status":"affected"},{"version":"0","lessThan":"4.16","status":"unaffected","versionType":"semver"},{"version":"5.10.258","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.209","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.175","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.142","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.92","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.34","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.11","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.6.142"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.12.92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.18.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"7.0.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/27856d533eca3804008695f61c1e4d5ff984196b"},{"url":"https://git.kernel.org/stable/c/b6b22824b30e48ce1df3a2e80990f4b8505deb50"},{"url":"https://git.kernel.org/stable/c/6bba24e9ebe6f1c0b356cd471e36bdc7fa434897"},{"url":"https://git.kernel.org/stable/c/3b249988d774dacf13b203817e971934a42243c4"},{"url":"https://git.kernel.org/stable/c/72158ea185b27afae163949b0e86164cb6b64e55"},{"url":"https://git.kernel.org/stable/c/cfd62907f3cdbc3b6da8f49ba907c0390018fe5e"},{"url":"https://git.kernel.org/stable/c/67a35e7da7ef9d2f000aa758552a128324c604a0"},{"url":"https://git.kernel.org/stable/c/06937db21ee311ed07eba47954447245041a982d"}],"title":"net: ethernet: cortina: Make RX SKB per-port","x_generator":{"engine":"bippy-1.2.0"}}}}