CVE-2026-98334

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98334", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.341Z", "datePublished": "2026-10-06T08:46:25.992Z", "dateUpdated": "2026-10-19T09:17:45.494Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:17:45.494Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: reset state when starting AP fails\n\nieee80211_start_ap() can set enable_beacon (and beacon_int) and fail\nlater, leaving it set forever. Scanning can then attempt to restore\nbeaconing on such an interface, leading to:\n\n Oops: divide error: 0000 [#1] SMP KASAN NOPTI\n RIP: 0010:mac80211_hwsim_link_info_changed+0xca7/0xf00\n Call Trace:\n drv_link_info_changed+0x413/0x860 net/mac80211/driver-ops.c:495\n ieee80211_link_info_change_notify+0x24b/0x3c0 net/mac80211/main.c:427\n ieee80211_offchannel_return+0x381/0x580 net/mac80211/offchannel.c:160\n __ieee80211_scan_completed+0x993/0xe30 net/mac80211/scan.c:519\n ieee80211_scan_work+0x472/0x2010 net/mac80211/scan.c:1193\n cfg80211_wiphy_work+0x2b7/0x550 net/wireless/core.c:538\n\nin hwsim. Also, cfg80211 then allows changing the interface type,\nand the off-channel path getgs confused about beaconing as well,\nleading to another warning:\n\n WARNING: net/mac80211/driver-ops.c:468 at drv_link_info_changed+0x583/0x880\n ieee80211_link_info_change_notify+0x24b/0x3c0 net/mac80211/main.c:427\n ieee80211_offchannel_stop_vifs+0x328/0x5c0 net/mac80211/offchannel.c:122\n ieee80211_start_sw_scan net/mac80211/scan.c:583 [inline]\n __ieee80211_start_scan+0xfb6/0x1af0 net/mac80211/scan.c:882\n\nReset the state on failures to always have it correct."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mac80211/cfg.c"], "versions": [{"version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862", "lessThan": "d83da43e9b3b3b1bad99ac5a1065f1c63ad5fc32", "status": "affected", "versionType": "git"}, {"version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862", "lessThan": "5d5ff5b36f5748a2a077f875a73ccb26860d3fcc", "status": "affected", "versionType": "git"}, {"version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862", "lessThan": "6eac225f59c1c2277ac74f8a716d6df0ba3b8d28", "status": "affected", "versionType": "git"}, {"version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862", "lessThan": "3f28551d0241254a75626d868041c6340285088b", "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/cfg.c"], "versions": [{"version": "3.9", "status": "affected"}, {"version": "0", "lessThan": "3.9", "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": "3.9", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d83da43e9b3b3b1bad99ac5a1065f1c63ad5fc32"}, {"url": "https://git.kernel.org/stable/c/5d5ff5b36f5748a2a077f875a73ccb26860d3fcc"}, {"url": "https://git.kernel.org/stable/c/6eac225f59c1c2277ac74f8a716d6df0ba3b8d28"}, {"url": "https://git.kernel.org/stable/c/3f28551d0241254a75626d868041c6340285088b"}], "title": "wifi: mac80211: reset state when starting AP fails", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/mac80211/cfg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d83da43e9b3b3b1bad99ac5a1065f1c63ad5fc32", "status": "affected", "version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862", "versionType": "git"}, {"lessThan": "5d5ff5b36f5748a2a077f875a73ccb26860d3fcc", "status": "affected", "version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862", "versionType": "git"}, {"lessThan": "6eac225f59c1c2277ac74f8a716d6df0ba3b8d28", "status": "affected", "version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862", "versionType": "git"}, {"lessThan": "3f28551d0241254a75626d868041c6340285088b", "status": "affected", "version": "d6a83228823fc0cc8d79d95c9f0bf568b7317862", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/mac80211/cfg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.9"}, {"lessThan": "3.9", "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\nwifi: mac80211: reset state when starting AP fails\n\nieee80211_start_ap() can set enable_beacon (and beacon_int) and fail\nlater, leaving it set forever. Scanning can then attempt to restore\nbeaconing on such an interface, leading to:\n\n Oops: divide error: 0000 [#1] SMP KASAN NOPTI\n RIP: 0010:mac80211_hwsim_link_info_changed+0xca7/0xf00\n Call Trace:\n drv_link_info_changed+0x413/0x860 net/mac80211/driver-ops.c:495\n ieee80211_link_info_change_notify+0x24b/0x3c0 net/mac80211/main.c:427\n ieee80211_offchannel_return+0x381/0x580 net/mac80211/offchannel.c:160\n __ieee80211_scan_completed+0x993/0xe30 net/mac80211/scan.c:519\n ieee80211_scan_work+0x472/0x2010 net/mac80211/scan.c:1193\n cfg80211_wiphy_work+0x2b7/0x550 net/wireless/core.c:538\n\nin hwsim. Also, cfg80211 then allows changing the interface type,\nand the off-channel path getgs confused about beaconing as well,\nleading to another warning:\n\n WARNING: net/mac80211/driver-ops.c:468 at drv_link_info_changed+0x583/0x880\n ieee80211_link_info_change_notify+0x24b/0x3c0 net/mac80211/main.c:427\n ieee80211_offchannel_stop_vifs+0x328/0x5c0 net/mac80211/offchannel.c:122\n ieee80211_start_sw_scan net/mac80211/scan.c:583 [inline]\n __ieee80211_start_scan+0xfb6/0x1af0 net/mac80211/scan.c:882\n\nReset the state on failures to always have it correct."}], "id": "CVE-2026-98334", "lastModified": "2026-10-19T10:18:35.627", "metrics": {}, "published": "2026-10-06T09:18:25.903", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3f28551d0241254a75626d868041c6340285088b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5d5ff5b36f5748a2a077f875a73ccb26860d3fcc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6eac225f59c1c2277ac74f8a716d6df0ba3b8d28"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d83da43e9b3b3b1bad99ac5a1065f1c63ad5fc32"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: mac80211: reset state when starting AP fails", "id": "2546442", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546442"}, "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-369", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: mac80211: reset state when starting AP fails\nieee80211_start_ap() can set enable_beacon (and beacon_int) and fail\nlater, leaving it set forever. Scanning can then attempt to restore\nbeaconing on such an interface, leading to:\nOops: divide error: 0000 [#1] SMP KASAN NOPTI\nRIP: 0010:mac80211_hwsim_link_info_changed+0xca7/0xf00\nCall Trace:\ndrv_link_info_changed+0x413/0x860 net/mac80211/driver-ops.c:495\nieee80211_link_info_change_notify+0x24b/0x3c0 net/mac80211/main.c:427\nieee80211_offchannel_return+0x381/0x580 net/mac80211/offchannel.c:160\n__ieee80211_scan_completed+0x993/0xe30 net/mac80211/scan.c:519\nieee80211_scan_work+0x472/0x2010 net/mac80211/scan.c:1193\ncfg80211_wiphy_work+0x2b7/0x550 net/wireless/core.c:538\nin hwsim. Also, cfg80211 then allows changing the interface type,\nand the off-channel path getgs confused about beaconing as well,\nleading to another warning:\nWARNING: net/mac80211/driver-ops.c:468 at drv_link_info_changed+0x583/0x880\nieee80211_link_info_change_notify+0x24b/0x3c0 net/mac80211/main.c:427\nieee80211_offchannel_stop_vifs+0x328/0x5c0 net/mac80211/offchannel.c:122\nieee80211_start_sw_scan net/mac80211/scan.c:583 [inline]\n__ieee80211_start_scan+0xfb6/0x1af0 net/mac80211/scan.c:882\nReset the state on failures to always have it correct.", "A flaw was found in the Linux kernel's mac80211 wireless subsystem. When starting a wireless Access Point (AP) fails after setting beacon parameters, the kernel does not properly reset its internal state. A local attacker can exploit this condition by triggering subsequent scanning operations on the affected interface, resulting in a system crash and a Denial of Service (DoS)."], "name": "CVE-2026-98334", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "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": "2026-10-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98334\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98334\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98334.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d6a83228823fc0cc8d79d95c9f0bf568b7317862,d83da43e9b3b3b1bad99ac5a1065f1c63ad5fc32)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d6a83228823fc0cc8d79d95c9f0bf568b7317862,5d5ff5b36f5748a2a077f875a73ccb26860d3fcc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d6a83228823fc0cc8d79d95c9f0bf568b7317862,6eac225f59c1c2277ac74f8a716d6df0ba3b8d28)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d6a83228823fc0cc8d79d95c9f0bf568b7317862,3f28551d0241254a75626d868041c6340285088b)"}}], "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": "3.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,6.13.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.54,6.19.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.8,7.3.0]"}}, {"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": "2026-10-06T13:45:18.455333+00:00", "updated": "2026-10-11T04:15:08.344367+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}