{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46158","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.102Z","datePublished":"2026-05-28T09:36:13.821Z","dateUpdated":"2026-06-14T17:58:53.619Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-14T17:58:53.619Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: ADD_ADDR rtx: always decrease sk refcount\n\nWhen an ADD_ADDR is retransmitted, the sk is held in sk_reset_timer().\nIt should then be released in all cases at the end.\n\nSome (unlikely) checks were returning directly instead of calling\nsock_put() to decrease the refcount. Jump to a new 'exit' label to call\n__sock_put() (which will become sock_put() in the next commit) to fix\nthis potential leak.\n\nWhile at it, drop the '!msk' check which cannot happen because it is\nnever reset, and explicitly mark the remaining one as \"unlikely\"."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mptcp/pm.c"],"versions":[{"version":"00cfd77b9063dcdf3628a7087faba60de85a9cc8","lessThan":"9426265e157dd77ec237c795901ed4dea6d69b5c","status":"affected","versionType":"git"},{"version":"00cfd77b9063dcdf3628a7087faba60de85a9cc8","lessThan":"b41dd76f3b9735096c21d3e799a2b9fe36498d57","status":"affected","versionType":"git"},{"version":"00cfd77b9063dcdf3628a7087faba60de85a9cc8","lessThan":"acd3d3562315c99f3c0db16f0fcc5f0306638982","status":"affected","versionType":"git"},{"version":"00cfd77b9063dcdf3628a7087faba60de85a9cc8","lessThan":"25e37407442b8766ec2cf52fb4e31b5c3d3aeeae","status":"affected","versionType":"git"},{"version":"00cfd77b9063dcdf3628a7087faba60de85a9cc8","lessThan":"9634cb35af17019baec21ca648516ce376fa10e6","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/mptcp/pm.c"],"versions":[{"version":"5.10","status":"affected"},{"version":"0","lessThan":"5.10","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":"6.18.30","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.7","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":"5.10","versionEndExcluding":"6.6.142"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.12.92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.18.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"7.0.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/9426265e157dd77ec237c795901ed4dea6d69b5c"},{"url":"https://git.kernel.org/stable/c/b41dd76f3b9735096c21d3e799a2b9fe36498d57"},{"url":"https://git.kernel.org/stable/c/acd3d3562315c99f3c0db16f0fcc5f0306638982"},{"url":"https://git.kernel.org/stable/c/25e37407442b8766ec2cf52fb4e31b5c3d3aeeae"},{"url":"https://git.kernel.org/stable/c/9634cb35af17019baec21ca648516ce376fa10e6"}],"title":"mptcp: pm: ADD_ADDR rtx: always decrease sk refcount","x_generator":{"engine":"bippy-1.2.0"}}}}