CVE-2026-98235

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98235", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.329Z", "datePublished": "2026-10-06T08:45:07.909Z", "dateUpdated": "2026-10-19T09:16:07.068Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:16:07.068Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/sched/act_api.c"], "versions": [{"version": "a0e947c9ccffe47d45aca793d9e7fe4f4494e381", "lessThan": "9eaba16f1b6ee19b249e6afd82c27f958d441458", "status": "affected", "versionType": "git"}, {"version": "a0e947c9ccffe47d45aca793d9e7fe4f4494e381", "lessThan": "1be63e4579af408d596f0f3165faf1a880631d3b", "status": "affected", "versionType": "git"}, {"version": "a0e947c9ccffe47d45aca793d9e7fe4f4494e381", "lessThan": "57b477e46ef2df3483f3488cc713c61c4b384aab", "status": "affected", "versionType": "git"}, {"version": "a0e947c9ccffe47d45aca793d9e7fe4f4494e381", "lessThan": "6e05e46fa821a5c1b281355f1f622ac76cb6080a", "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/sched/act_api.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.54", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.8", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.8", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.3"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-98235", "lastModified": "2026-10-19T10:18:24.340", "metrics": {}, "published": "2026-10-06T09:18:11.203", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1be63e4579af408d596f0f3165faf1a880631d3b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/57b477e46ef2df3483f3488cc713c61c4b384aab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6e05e46fa821a5c1b281355f1f622ac76cb6080a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9eaba16f1b6ee19b249e6afd82c27f958d441458"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: net/sched: act_api: release tail references on DELACTION failure", "id": "2546363", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546363"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-911", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet/sched: act_api: release tail references on DELACTION failure\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.\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.\nWalk the full array in tcf_action_put_many() and skip NULL slots to\nrelease the references held on the unprocessed actions.", "A flaw was found in the Linux kernel's network traffic control subsystem. When processing a batched request to delete traffic actions, a failure encountered on an action bound to a filter causes the cleanup process to terminate prematurely without releasing references on subsequent actions. A local user with network administration privileges could exploit this flaw by issuing a crafted deletion request, resulting in a reference count leak that can lead to resource exhaustion and a denial of service (DoS)."], "name": "CVE-2026-98235", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98235\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98235\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98235.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a0e947c9ccffe47d45aca793d9e7fe4f4494e381,9eaba16f1b6ee19b249e6afd82c27f958d441458)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a0e947c9ccffe47d45aca793d9e7fe4f4494e381,1be63e4579af408d596f0f3165faf1a880631d3b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a0e947c9ccffe47d45aca793d9e7fe4f4494e381,57b477e46ef2df3483f3488cc713c61c4b384aab)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a0e947c9ccffe47d45aca793d9e7fe4f4494e381,6e05e46fa821a5c1b281355f1f622ac76cb6080a)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.8"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.8)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.112,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.54,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.8,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc4,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-06T12:00:15.382461+00:00", "updated": "2026-10-10T01:45:15.413549+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-753", "CWE-911"]}