{"api_version":"1","generated_at":"2026-10-21T10:17:03+00:00","cve":"CVE-2026-98235","urls":{"html":"https://cve.report/CVE-2026-98235","api":"https://cve.report/api/cve/CVE-2026-98235.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98235","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98235"},"summary":{"title":"net/sched: act_api: release tail references on DELACTION failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_api: release tail references on DELACTION failure\n\nA batched RTM_DELACTION request takes a temporary reference on each\naction before attempting any deletion. tcf_action_delete() clears\neach processed slot and drops its temporary reference before attempting\nthe deletion. If deletion fails, tca_action_gd() calls\ntcf_action_put_many() to release the remaining references, but its\ntcf_act_for_each_action() iterator stops at the first NULL slot.\n\nWhen a batch stops at an action bound to a filter, this leaks a\nreference on each subsequent action. A later delete of an unbound\naction can then return success without removing it from the IDR.\n\nWalk the full array in tcf_action_put_many() and skip NULL slots to\nrelease the references held on the unprocessed actions.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-06 09:18:11","updated_at":"2026-10-19 10:18:24"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/57b477e46ef2df3483f3488cc713c61c4b384aab","name":"https://git.kernel.org/stable/c/57b477e46ef2df3483f3488cc713c61c4b384aab","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6e05e46fa821a5c1b281355f1f622ac76cb6080a","name":"https://git.kernel.org/stable/c/6e05e46fa821a5c1b281355f1f622ac76cb6080a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9eaba16f1b6ee19b249e6afd82c27f958d441458","name":"https://git.kernel.org/stable/c/9eaba16f1b6ee19b249e6afd82c27f958d441458","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1be63e4579af408d596f0f3165faf1a880631d3b","name":"https://git.kernel.org/stable/c/1be63e4579af408d596f0f3165faf1a880631d3b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98235","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98235","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a0e947c9ccffe47d45aca793d9e7fe4f4494e381 9eaba16f1b6ee19b249e6afd82c27f958d441458 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a0e947c9ccffe47d45aca793d9e7fe4f4494e381 1be63e4579af408d596f0f3165faf1a880631d3b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a0e947c9ccffe47d45aca793d9e7fe4f4494e381 57b477e46ef2df3483f3488cc713c61c4b384aab git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a0e947c9ccffe47d45aca793d9e7fe4f4494e381 6e05e46fa821a5c1b281355f1f622ac76cb6080a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.8","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.8 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.112 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.54 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.8 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"98235","cve":"CVE-2026-98235","epss":"0.001750000","percentile":"0.063840000","score_date":"2026-10-06","updated_at":"2026-10-07 00:14:55"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/sched/act_api.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9eaba16f1b6ee19b249e6afd82c27f958d441458","status":"affected","version":"a0e947c9ccffe47d45aca793d9e7fe4f4494e381","versionType":"git"},{"lessThan":"1be63e4579af408d596f0f3165faf1a880631d3b","status":"affected","version":"a0e947c9ccffe47d45aca793d9e7fe4f4494e381","versionType":"git"},{"lessThan":"57b477e46ef2df3483f3488cc713c61c4b384aab","status":"affected","version":"a0e947c9ccffe47d45aca793d9e7fe4f4494e381","versionType":"git"},{"lessThan":"6e05e46fa821a5c1b281355f1f622ac76cb6080a","status":"affected","version":"a0e947c9ccffe47d45aca793d9e7fe4f4494e381","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/sched/act_api.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.8"},{"lessThan":"6.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.112","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.54","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.112","versionStartIncluding":"6.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.54","versionStartIncluding":"6.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.8","versionStartIncluding":"6.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"6.8","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_api: release tail references on DELACTION failure\n\nA batched RTM_DELACTION request takes a temporary reference on each\naction before attempting any deletion. tcf_action_delete() clears\neach processed slot and drops its temporary reference before attempting\nthe deletion. If deletion fails, tca_action_gd() calls\ntcf_action_put_many() to release the remaining references, but its\ntcf_act_for_each_action() iterator stops at the first NULL slot.\n\nWhen a batch stops at an action bound to a filter, this leaks a\nreference on each subsequent action. A later delete of an unbound\naction can then return success without removing it from the IDR.\n\nWalk the full array in tcf_action_put_many() and skip NULL slots to\nrelease the references held on the unprocessed actions."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:16:07.068Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/9eaba16f1b6ee19b249e6afd82c27f958d441458"},{"url":"https://git.kernel.org/stable/c/1be63e4579af408d596f0f3165faf1a880631d3b"},{"url":"https://git.kernel.org/stable/c/57b477e46ef2df3483f3488cc713c61c4b384aab"},{"url":"https://git.kernel.org/stable/c/6e05e46fa821a5c1b281355f1f622ac76cb6080a"}],"title":"net/sched: act_api: release tail references on DELACTION failure","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98235","datePublished":"2026-10-06T08:45:07.909Z","dateReserved":"2026-09-25T10:25:14.329Z","dateUpdated":"2026-10-19T09:16:07.068Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 09:18:11","lastModifiedDate":"2026-10-19 10:18:24","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98235","Ordinal":"1","Title":"net/sched: act_api: release tail references on DELACTION failure","CVE":"CVE-2026-98235","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98235","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_api: release tail references on DELACTION failure\n\nA batched RTM_DELACTION request takes a temporary reference on each\naction before attempting any deletion. tcf_action_delete() clears\neach processed slot and drops its temporary reference before attempting\nthe deletion. If deletion fails, tca_action_gd() calls\ntcf_action_put_many() to release the remaining references, but its\ntcf_act_for_each_action() iterator stops at the first NULL slot.\n\nWhen a batch stops at an action bound to a filter, this leaks a\nreference on each subsequent action. A later delete of an unbound\naction can then return success without removing it from the IDR.\n\nWalk the full array in tcf_action_put_many() and skip NULL slots to\nrelease the references held on the unprocessed actions.","Type":"Description","Title":"net/sched: act_api: release tail references on DELACTION failure"}]}}}