{"id":"CVE-2026-97981","state":"PUBLISHED","title":"net: ethernet: cortina: Count dropped frames as NAPI work","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: cortina: Count dropped frames as NAPI work\n\nThe RX loop only consumes budget when it successfully delivers a frame.\nError paths keep consuming descriptors without reducing the budget, so a\nstream of bad frames can process the entire receive ring in one poll.\n\nMove the budget accounting to a common end-of-frame path. This counts\neach completed frame as NAPI work whether it was delivered or dropped,\nmatching the behavior of the vendor driver.","publishedAt":"2026-09-25T10:23:17.703Z","updatedAt":"2026-10-19T09:11:48.414Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"620b7184808b25cf58268856f892b9ba83c181fd","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"9620e2ce9b5998ebbf157241f296f8ddb92285c2","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"27b5753077d1cfda5fe201d2ba602de76a9a09b1","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"e858b9b1ea3cbbc353189d07dec40dc16967e290","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"58140f1cebb776d174dc6ff41c15401654a5b1ea","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"cceb6cd7f0e5ed2944a9ca22443d7b9da82f60ab","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"5754e0c0758805096ecfeaf4c1b146ad51ed246f","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"b856c552f556bc0341c1dbe0bf88e630fd1dc4b7","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cortina/gemini.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.16","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cortina/gemini.c"]}],"references":["https://git.kernel.org/stable/c/620b7184808b25cf58268856f892b9ba83c181fd","https://git.kernel.org/stable/c/9620e2ce9b5998ebbf157241f296f8ddb92285c2","https://git.kernel.org/stable/c/27b5753077d1cfda5fe201d2ba602de76a9a09b1","https://git.kernel.org/stable/c/e858b9b1ea3cbbc353189d07dec40dc16967e290","https://git.kernel.org/stable/c/58140f1cebb776d174dc6ff41c15401654a5b1ea","https://git.kernel.org/stable/c/cceb6cd7f0e5ed2944a9ca22443d7b9da82f60ab","https://git.kernel.org/stable/c/5754e0c0758805096ecfeaf4c1b146ad51ed246f","https://git.kernel.org/stable/c/b856c552f556bc0341c1dbe0bf88e630fd1dc4b7"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/97xxx/CVE-2026-97981.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-97981","state":"PUBLISHED","datePublished":"2026-09-25T10:23:17.703Z","dateUpdated":"2026-10-19T09:11:48.414Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:18:58.208Z"},"containers":{"cna":{"title":"net: ethernet: cortina: Count dropped frames as NAPI work","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: cortina: Count dropped frames as NAPI work\n\nThe RX loop only consumes budget when it successfully delivers a frame.\nError paths keep consuming descriptors without reducing the budget, so a\nstream of bad frames can process the entire receive ring in one poll.\n\nMove the budget accounting to a common end-of-frame path. This counts\neach completed frame as NAPI work whether it was delivered or dropped,\nmatching the behavior of the vendor driver."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"620b7184808b25cf58268856f892b9ba83c181fd","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"9620e2ce9b5998ebbf157241f296f8ddb92285c2","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"27b5753077d1cfda5fe201d2ba602de76a9a09b1","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"e858b9b1ea3cbbc353189d07dec40dc16967e290","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"58140f1cebb776d174dc6ff41c15401654a5b1ea","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"cceb6cd7f0e5ed2944a9ca22443d7b9da82f60ab","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"5754e0c0758805096ecfeaf4c1b146ad51ed246f","versionType":"git"},{"version":"4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88","status":"affected","lessThan":"b856c552f556bc0341c1dbe0bf88e630fd1dc4b7","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cortina/gemini.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.16","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cortina/gemini.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/620b7184808b25cf58268856f892b9ba83c181fd"},{"url":"https://git.kernel.org/stable/c/9620e2ce9b5998ebbf157241f296f8ddb92285c2"},{"url":"https://git.kernel.org/stable/c/27b5753077d1cfda5fe201d2ba602de76a9a09b1"},{"url":"https://git.kernel.org/stable/c/e858b9b1ea3cbbc353189d07dec40dc16967e290"},{"url":"https://git.kernel.org/stable/c/58140f1cebb776d174dc6ff41c15401654a5b1ea"},{"url":"https://git.kernel.org/stable/c/cceb6cd7f0e5ed2944a9ca22443d7b9da82f60ab"},{"url":"https://git.kernel.org/stable/c/5754e0c0758805096ecfeaf4c1b146ad51ed246f"},{"url":"https://git.kernel.org/stable/c/b856c552f556bc0341c1dbe0bf88e630fd1dc4b7"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:11:48.414Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"7.2.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}