{"api_version":"1","generated_at":"2026-05-28T16:29:02+00:00","cve":"CVE-2026-46231","urls":{"html":"https://cve.report/CVE-2026-46231","api":"https://cve.report/api/cve/CVE-2026-46231.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46231","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46231"},"summary":{"title":"batman-adv: bla: put backbone reference on failed claim hash insert","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: put backbone reference on failed claim hash insert\n\nWhen batadv_bla_add_claim() fails to insert a new claim into the hash, it\nleaked a reference to the backbone_gw for which the claim was intended.\nCall batadv_backbone_gw_put() on the error path to release the reference\nand avoid leaking the backbone_gw object.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-28 10:16:38","updated_at":"2026-05-28 13:44:01"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/ba9d20ee9076dac32c371116bacbe72480eb356c","name":"https://git.kernel.org/stable/c/ba9d20ee9076dac32c371116bacbe72480eb356c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fd0ca034c1e71ca7613cde9dd892836b2c2831bd","name":"https://git.kernel.org/stable/c/fd0ca034c1e71ca7613cde9dd892836b2c2831bd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7cccf4eb4f96d3c3af91a00b7a9caa652439542e","name":"https://git.kernel.org/stable/c/7cccf4eb4f96d3c3af91a00b7a9caa652439542e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0baf4b659cdc7305cf685b5a5d60f9e3816ab5d0","name":"https://git.kernel.org/stable/c/0baf4b659cdc7305cf685b5a5d60f9e3816ab5d0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/65419eb4259a26a3cd3f56fa0e3b3c113bf8c256","name":"https://git.kernel.org/stable/c/65419eb4259a26a3cd3f56fa0e3b3c113bf8c256","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46231","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46231","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3db0decf1185357d6ab2256d0dede1ca9efda03d 65419eb4259a26a3cd3f56fa0e3b3c113bf8c256 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3db0decf1185357d6ab2256d0dede1ca9efda03d fd0ca034c1e71ca7613cde9dd892836b2c2831bd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3db0decf1185357d6ab2256d0dede1ca9efda03d 0baf4b659cdc7305cf685b5a5d60f9e3816ab5d0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3db0decf1185357d6ab2256d0dede1ca9efda03d 7cccf4eb4f96d3c3af91a00b7a9caa652439542e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3db0decf1185357d6ab2256d0dede1ca9efda03d ba9d20ee9076dac32c371116bacbe72480eb356c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3fdd337ac0b277a1f40aa73b35283520f426e517 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 485eedfabc2aefac8f09f98a82ba1c1e3e202a6d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.16.39 3.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.4.217 4.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.7","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.7 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.140 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.90 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.32 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.9 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc4 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/batman-adv/bridge_loop_avoidance.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"65419eb4259a26a3cd3f56fa0e3b3c113bf8c256","status":"affected","version":"3db0decf1185357d6ab2256d0dede1ca9efda03d","versionType":"git"},{"lessThan":"fd0ca034c1e71ca7613cde9dd892836b2c2831bd","status":"affected","version":"3db0decf1185357d6ab2256d0dede1ca9efda03d","versionType":"git"},{"lessThan":"0baf4b659cdc7305cf685b5a5d60f9e3816ab5d0","status":"affected","version":"3db0decf1185357d6ab2256d0dede1ca9efda03d","versionType":"git"},{"lessThan":"7cccf4eb4f96d3c3af91a00b7a9caa652439542e","status":"affected","version":"3db0decf1185357d6ab2256d0dede1ca9efda03d","versionType":"git"},{"lessThan":"ba9d20ee9076dac32c371116bacbe72480eb356c","status":"affected","version":"3db0decf1185357d6ab2256d0dede1ca9efda03d","versionType":"git"},{"status":"affected","version":"3fdd337ac0b277a1f40aa73b35283520f426e517","versionType":"git"},{"status":"affected","version":"485eedfabc2aefac8f09f98a82ba1c1e3e202a6d","versionType":"git"},{"lessThan":"3.17","status":"affected","version":"3.16.39","versionType":"semver"},{"lessThan":"4.5","status":"affected","version":"4.4.217","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/batman-adv/bridge_loop_avoidance.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.7"},{"lessThan":"4.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.90","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.32","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc4","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.140","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.90","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.32","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.9","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc4","versionStartIncluding":"4.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4.217","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: put backbone reference on failed claim hash insert\n\nWhen batadv_bla_add_claim() fails to insert a new claim into the hash, it\nleaked a reference to the backbone_gw for which the claim was intended.\nCall batadv_backbone_gw_put() on the error path to release the reference\nand avoid leaking the backbone_gw object."}],"providerMetadata":{"dateUpdated":"2026-05-28T09:40:53.471Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/65419eb4259a26a3cd3f56fa0e3b3c113bf8c256"},{"url":"https://git.kernel.org/stable/c/fd0ca034c1e71ca7613cde9dd892836b2c2831bd"},{"url":"https://git.kernel.org/stable/c/0baf4b659cdc7305cf685b5a5d60f9e3816ab5d0"},{"url":"https://git.kernel.org/stable/c/7cccf4eb4f96d3c3af91a00b7a9caa652439542e"},{"url":"https://git.kernel.org/stable/c/ba9d20ee9076dac32c371116bacbe72480eb356c"}],"title":"batman-adv: bla: put backbone reference on failed claim hash insert","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46231","datePublished":"2026-05-28T09:40:53.471Z","dateReserved":"2026-05-13T15:03:33.106Z","dateUpdated":"2026-05-28T09:40:53.471Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-28 10:16:38","lastModifiedDate":"2026-05-28 13:44:01","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46231","Ordinal":"1","Title":"batman-adv: bla: put backbone reference on failed claim hash ins","CVE":"CVE-2026-46231","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46231","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bla: put backbone reference on failed claim hash insert\n\nWhen batadv_bla_add_claim() fails to insert a new claim into the hash, it\nleaked a reference to the backbone_gw for which the claim was intended.\nCall batadv_backbone_gw_put() on the error path to release the reference\nand avoid leaking the backbone_gw object.","Type":"Description","Title":"batman-adv: bla: put backbone reference on failed claim hash ins"}]}}}