{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46212","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.105Z","datePublished":"2026-05-28T09:40:29.712Z","dateUpdated":"2026-06-14T18:03:07.022Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-14T18:03:07.022Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: prevent use-after-free when deleting claims\n\nWhen batadv_bla_del_backbone_claims() removes all claims for a backbone, it\ndoes this by dropping the link entry in the hash list. This list entry\nitself was one of the references which need to be dropped at the same time\nvia batadv_claim_put().\n\nBut the batadv_claim_put() must not be done before the last access to the\nclaim object in this function. Otherwise the claim might be freed already\nby the batadv_claim_release() function before the list entry was dropped."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/batman-adv/bridge_loop_avoidance.c"],"versions":[{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"1d4b241482d9025c537afb3c7c8419c72c0e0c82","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"a1a99837bb6169cfb9187abaa2005e8f12079426","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"b88c865dcf6e9f20bfe66a360d4b62941ef769b8","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"368449e467d5f1e2c2e987bf2bd57000ba75e10b","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"6c5dc6d68e6ba7f0224a757a39ed52fcdb54d472","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"00155f336a5e8b1006d2ca9ae7ad8fc4a44bb401","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"0cc9847c64cb6e61118bc78c9187c8209a7197fa","status":"affected","versionType":"git"},{"version":"23721387c409087fd3b97e274f34d3ddc0970b74","lessThan":"4ae1709a314060a196981b344610d023ea841e57","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/batman-adv/bridge_loop_avoidance.c"],"versions":[{"version":"3.5","status":"affected"},{"version":"0","lessThan":"3.5","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":"6.6.140","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.90","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.32","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.9","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":"3.5","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.6.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.12.90"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"6.18.32"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"7.0.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.5","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1d4b241482d9025c537afb3c7c8419c72c0e0c82"},{"url":"https://git.kernel.org/stable/c/a1a99837bb6169cfb9187abaa2005e8f12079426"},{"url":"https://git.kernel.org/stable/c/b88c865dcf6e9f20bfe66a360d4b62941ef769b8"},{"url":"https://git.kernel.org/stable/c/368449e467d5f1e2c2e987bf2bd57000ba75e10b"},{"url":"https://git.kernel.org/stable/c/6c5dc6d68e6ba7f0224a757a39ed52fcdb54d472"},{"url":"https://git.kernel.org/stable/c/00155f336a5e8b1006d2ca9ae7ad8fc4a44bb401"},{"url":"https://git.kernel.org/stable/c/0cc9847c64cb6e61118bc78c9187c8209a7197fa"},{"url":"https://git.kernel.org/stable/c/4ae1709a314060a196981b344610d023ea841e57"}],"title":"batman-adv: bla: prevent use-after-free when deleting claims","x_generator":{"engine":"bippy-1.2.0"}}}}