{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31471","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-03-09T15:48:24.098Z","datePublished":"2026-04-22T13:53:59.595Z","dateUpdated":"2026-05-11T22:09:22.643Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:09:22.643Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: iptfs: only publish mode_data after clone setup\n\niptfs_clone_state() stores x->mode_data before allocating the reorder\nwindow. If that allocation fails, the code frees the cloned state and\nreturns -ENOMEM, leaving x->mode_data pointing at freed memory.\n\nThe xfrm clone unwind later runs destroy_state() through x->mode_data,\nso the failed clone path tears down IPTFS state that clone_state()\nalready freed.\n\nKeep the cloned IPTFS state private until all allocations succeed so\nfailed clones leave x->mode_data unset. The destroy path already\nhandles a NULL mode_data pointer."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/xfrm/xfrm_iptfs.c"],"versions":[{"version":"6be02e3e4f376fea468846c8562655ca5ee18204","lessThan":"371a43c4ac70cac0de9f9b1fc5b1660b9565b9f1","status":"affected","versionType":"git"},{"version":"6be02e3e4f376fea468846c8562655ca5ee18204","lessThan":"5784a1e2889c9525a8f036cb586930e232170bf7","status":"affected","versionType":"git"},{"version":"6be02e3e4f376fea468846c8562655ca5ee18204","lessThan":"d849a2f7309fc0616e79d13b008b0a47e0458b6e","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/xfrm/xfrm_iptfs.c"],"versions":[{"version":"6.14","status":"affected"},{"version":"0","lessThan":"6.14","status":"unaffected","versionType":"semver"},{"version":"6.18.21","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.11","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","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":"6.14","versionEndExcluding":"6.18.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"6.19.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/371a43c4ac70cac0de9f9b1fc5b1660b9565b9f1"},{"url":"https://git.kernel.org/stable/c/5784a1e2889c9525a8f036cb586930e232170bf7"},{"url":"https://git.kernel.org/stable/c/d849a2f7309fc0616e79d13b008b0a47e0458b6e"}],"title":"xfrm: iptfs: only publish mode_data after clone setup","x_generator":{"engine":"bippy-1.2.0"}}}}