{"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": "2026-05-28T09:40:29.712Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-28T09:40:29.712Z"}, "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."}], "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": "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": "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-rc4", "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": "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-rc4"}]}]}], "references": [{"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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-46212", "lastModified": "2026-05-28T10:16:36.853", "metrics": {}, "published": "2026-05-28T10:16:36.853", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/00155f336a5e8b1006d2ca9ae7ad8fc4a44bb401"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0cc9847c64cb6e61118bc78c9187c8209a7197fa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/368449e467d5f1e2c2e987bf2bd57000ba75e10b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4ae1709a314060a196981b344610d023ea841e57"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6c5dc6d68e6ba7f0224a757a39ed52fcdb54d472"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}