{"id":"CVE-2026-97522","state":"PUBLISHED","title":"mptcp: fix bad accounting in __mptcp_subflow_push_pending()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix bad accounting in __mptcp_subflow_push_pending()\n\nIf __subflow_push_pending() errors out we should avoid updating the\ncopied byte counters, to avoid mismatch push call later on.","publishedAt":"2026-09-25T10:21:26.420Z","updatedAt":"2026-10-19T09:08:40.383Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0fa1b3783a17d75a4aa1651a18ede041ffca5750","status":"affected","lessThan":"ddbf9f03c1cc7d5b86eebe7c2beea0db4286d354","versionType":"git"},{"version":"0fa1b3783a17d75a4aa1651a18ede041ffca5750","status":"affected","lessThan":"9781fa35d9f7a87a83115acd3a88bc9ce35b5407","versionType":"git"},{"version":"0fa1b3783a17d75a4aa1651a18ede041ffca5750","status":"affected","lessThan":"a0a64525f3414268ed4b1945a1dc690aa974dd4f","versionType":"git"},{"version":"0fa1b3783a17d75a4aa1651a18ede041ffca5750","status":"affected","lessThan":"dc054821e639a2e14f1419436612db70b6af45fc","versionType":"git"},{"version":"0fa1b3783a17d75a4aa1651a18ede041ffca5750","status":"affected","lessThan":"f3ef03357396d4b147d8e76c75fb612c2f264ffc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mptcp/protocol.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","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":["net/mptcp/protocol.c"]}],"references":["https://git.kernel.org/stable/c/ddbf9f03c1cc7d5b86eebe7c2beea0db4286d354","https://git.kernel.org/stable/c/9781fa35d9f7a87a83115acd3a88bc9ce35b5407","https://git.kernel.org/stable/c/a0a64525f3414268ed4b1945a1dc690aa974dd4f","https://git.kernel.org/stable/c/dc054821e639a2e14f1419436612db70b6af45fc","https://git.kernel.org/stable/c/f3ef03357396d4b147d8e76c75fb612c2f264ffc"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/97xxx/CVE-2026-97522.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-97522","state":"PUBLISHED","datePublished":"2026-09-25T10:21:26.420Z","dateUpdated":"2026-10-19T09:08:40.383Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-24T16:01:01.152Z"},"containers":{"cna":{"title":"mptcp: fix bad accounting in __mptcp_subflow_push_pending()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix bad accounting in __mptcp_subflow_push_pending()\n\nIf __subflow_push_pending() errors out we should avoid updating the\ncopied byte counters, to avoid mismatch push call later on."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0fa1b3783a17d75a4aa1651a18ede041ffca5750","status":"affected","lessThan":"ddbf9f03c1cc7d5b86eebe7c2beea0db4286d354","versionType":"git"},{"version":"0fa1b3783a17d75a4aa1651a18ede041ffca5750","status":"affected","lessThan":"9781fa35d9f7a87a83115acd3a88bc9ce35b5407","versionType":"git"},{"version":"0fa1b3783a17d75a4aa1651a18ede041ffca5750","status":"affected","lessThan":"a0a64525f3414268ed4b1945a1dc690aa974dd4f","versionType":"git"},{"version":"0fa1b3783a17d75a4aa1651a18ede041ffca5750","status":"affected","lessThan":"dc054821e639a2e14f1419436612db70b6af45fc","versionType":"git"},{"version":"0fa1b3783a17d75a4aa1651a18ede041ffca5750","status":"affected","lessThan":"f3ef03357396d4b147d8e76c75fb612c2f264ffc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mptcp/protocol.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","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":["net/mptcp/protocol.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ddbf9f03c1cc7d5b86eebe7c2beea0db4286d354"},{"url":"https://git.kernel.org/stable/c/9781fa35d9f7a87a83115acd3a88bc9ce35b5407"},{"url":"https://git.kernel.org/stable/c/a0a64525f3414268ed4b1945a1dc690aa974dd4f"},{"url":"https://git.kernel.org/stable/c/dc054821e639a2e14f1419436612db70b6af45fc"},{"url":"https://git.kernel.org/stable/c/f3ef03357396d4b147d8e76c75fb612c2f264ffc"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:08:40.383Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"7.2.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}