{"id":"CVE-2026-98235","summary":"net/sched: act_api: release tail references on DELACTION failure","details":"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.","modified":"2026-10-08T02:52:54.178263353Z","published":"2026-10-06T08:45:07.909Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98235.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1be63e4579af408d596f0f3165faf1a880631d3b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/57b477e46ef2df3483f3488cc713c61c4b384aab"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6e05e46fa821a5c1b281355f1f622ac76cb6080a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9eaba16f1b6ee19b249e6afd82c27f958d441458"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98235.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98235"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a0e947c9ccffe47d45aca793d9e7fe4f4494e381"},{"fixed":"9eaba16f1b6ee19b249e6afd82c27f958d441458"},{"fixed":"1be63e4579af408d596f0f3165faf1a880631d3b"},{"fixed":"57b477e46ef2df3483f3488cc713c61c4b384aab"},{"fixed":"6e05e46fa821a5c1b281355f1f622ac76cb6080a"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98235.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"6.12.112"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.54"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98235.json"}}],"schema_version":"1.9.0"}