CVE-2026-98822

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98822", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.372Z", "datePublished": "2026-10-18T15:49:14.593Z", "dateUpdated": "2026-10-21T12:57:13.743Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-21T12:57:13.743Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: prevent AP VLAN tx from other interfaces\n\nSince the station lookup was factored out of ieee80211_build_hdr(),\nieee80211_lookup_ra_sta() uses sta_info_get_bss() for all AP and AP VLAN\nframes, not only for control port frames. A unicast frame sent on one\ninterface thus matches a station of a different VLAN of the same BSS and\nis transmitted to it.\n\nOnly match stations of the interface the frame is sent on, except for\ncontrol port frames, since those may be sent for VLAN stations directly\non the BSS interface."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mac80211/ieee80211_i.h", "net/mac80211/tx.c"], "versions": [{"version": "97ffe75791b3e9c0797d5891070e41321c3beccb", "lessThan": "2fe08c8ff26841430a3c98ab755337325b5d47b5", "status": "affected", "versionType": "git"}, {"version": "97ffe75791b3e9c0797d5891070e41321c3beccb", "lessThan": "fd875e24e8f2b202e3636b3ef8e6060874eca0e5", "status": "affected", "versionType": "git"}, {"version": "97ffe75791b3e9c0797d5891070e41321c3beccb", "lessThan": "88e96d902efeefbffc34450969f40dc61a0c8a42", "status": "affected", "versionType": "git"}, {"version": "97ffe75791b3e9c0797d5891070e41321c3beccb", "lessThan": "ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0", "status": "affected", "versionType": "git"}, {"version": "97ffe75791b3e9c0797d5891070e41321c3beccb", "lessThan": "7f93ca31f7fd9b42e7d692f59514436d448ac908", "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/mac80211/ieee80211_i.h", "net/mac80211/tx.c"], "versions": [{"version": "4.1", "status": "affected"}, {"version": "0", "lessThan": "4.1", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.56", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.10", "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": "4.1", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "6.18.56"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "7.2.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.1", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2fe08c8ff26841430a3c98ab755337325b5d47b5"}, {"url": "https://git.kernel.org/stable/c/fd875e24e8f2b202e3636b3ef8e6060874eca0e5"}, {"url": "https://git.kernel.org/stable/c/88e96d902efeefbffc34450969f40dc61a0c8a42"}, {"url": "https://git.kernel.org/stable/c/ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0"}, {"url": "https://git.kernel.org/stable/c/7f93ca31f7fd9b42e7d692f59514436d448ac908"}], "title": "wifi: mac80211: prevent AP VLAN tx from other interfaces", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/mac80211/ieee80211_i.h", "net/mac80211/tx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "2fe08c8ff26841430a3c98ab755337325b5d47b5", "status": "affected", "version": "97ffe75791b3e9c0797d5891070e41321c3beccb", "versionType": "git"}, {"lessThan": "fd875e24e8f2b202e3636b3ef8e6060874eca0e5", "status": "affected", "version": "97ffe75791b3e9c0797d5891070e41321c3beccb", "versionType": "git"}, {"lessThan": "88e96d902efeefbffc34450969f40dc61a0c8a42", "status": "affected", "version": "97ffe75791b3e9c0797d5891070e41321c3beccb", "versionType": "git"}, {"lessThan": "ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0", "status": "affected", "version": "97ffe75791b3e9c0797d5891070e41321c3beccb", "versionType": "git"}, {"lessThan": "7f93ca31f7fd9b42e7d692f59514436d448ac908", "status": "affected", "version": "97ffe75791b3e9c0797d5891070e41321c3beccb", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/mac80211/ieee80211_i.h", "net/mac80211/tx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.1"}, {"lessThan": "4.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.56", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.10", "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\nwifi: mac80211: prevent AP VLAN tx from other interfaces\n\nSince the station lookup was factored out of ieee80211_build_hdr(),\nieee80211_lookup_ra_sta() uses sta_info_get_bss() for all AP and AP VLAN\nframes, not only for control port frames. A unicast frame sent on one\ninterface thus matches a station of a different VLAN of the same BSS and\nis transmitted to it.\n\nOnly match stations of the interface the frame is sent on, except for\ncontrol port frames, since those may be sent for VLAN stations directly\non the BSS interface."}], "id": "CVE-2026-98822", "lastModified": "2026-10-21T13:21:48.023", "metrics": {}, "published": "2026-10-18T16:17:36.437", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2fe08c8ff26841430a3c98ab755337325b5d47b5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7f93ca31f7fd9b42e7d692f59514436d448ac908"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/88e96d902efeefbffc34450969f40dc61a0c8a42"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fd875e24e8f2b202e3636b3ef8e6060874eca0e5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: mac80211: prevent AP VLAN tx from other interfaces", "id": "2555256", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2555256"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.3", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "draft"}, "cwe": "CWE-941", "details": ["A flaw was found in the Linux kernel's mac80211 wireless subsystem. This flaw can lead to information disclosure across network boundaries when transmitting frames across Access Point (AP) virtual local area networks (VLANs). Due to improper station lookup logic, the kernel matches recipient devices across the entire wireless network rather than restricting the search to the originating interface. Consequently, unintended devices on a separate VLAN can receive sensitive unicast network traffic, bypassing network segmentation."], "name": "CVE-2026-98822", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "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": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98822\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98822\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98822.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[97ffe75791b3e9c0797d5891070e41321c3beccb,fd875e24e8f2b202e3636b3ef8e6060874eca0e5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[97ffe75791b3e9c0797d5891070e41321c3beccb,88e96d902efeefbffc34450969f40dc61a0c8a42)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[97ffe75791b3e9c0797d5891070e41321c3beccb,ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[97ffe75791b3e9c0797d5891070e41321c3beccb,7f93ca31f7fd9b42e7d692f59514436d448ac908)"}}], "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": "4.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.113,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.56,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.10,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "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": "2026-10-18T20:30:17.102478+00:00", "updated": "2026-10-24T03:30:15.423342+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}