CVE-2026-98326

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98326", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.340Z", "datePublished": "2026-10-06T08:46:19.534Z", "dateUpdated": "2026-10-19T09:17:36.726Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:17:36.726Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: mesh: release the channel if start fails\n\nieee80211_join_mesh() acquires a channel context and then calls\nieee80211_start_mesh(), which can fail. In that case, the chanctx\nisn't released then interface removal will attempt to unassign it\nafter it's removed from the driver, hitting:\n\n wlan0: Failed check-sdata-in-driver check, flags: 0x0\n WARNING: net/mac80211/driver-ops.c:366 at drv_unassign_vif_chanctx\n ieee80211_assign_link_chanctx\n __ieee80211_link_release_channel\n ieee80211_link_release_channel\n ieee80211_teardown_sdata\n unregister_netdevice_many_notify\n _cfg80211_unregister_wdev\n ieee80211_remove_interfaces\n ieee80211_unregister_hw\n mac80211_hwsim_del_radio\n hwsim_exit_net\n\nCorrectly release the channel on start failures."}], "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": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "lessThan": "f0afcec2129c166e61821d6ae097061155f01b12", "status": "affected", "versionType": "git"}, {"version": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "lessThan": "b51f5a310bd6888b90bb9546a8081215dcfe6fbe", "status": "affected", "versionType": "git"}, {"version": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "lessThan": "632f7acfe6dac1278a9314eaaab14fada400ddaf", "status": "affected", "versionType": "git"}, {"version": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "lessThan": "41bee71112db53651ba9a9030de1b843255a4a7f", "status": "affected", "versionType": "git"}, {"version": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "lessThan": "4a4e3fa77ea36d3419d806fb5883ef425a605a5d", "status": "affected", "versionType": "git"}, {"version": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "lessThan": "ae97fff6495a8764bc0ef281cfe5444f701e527f", "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": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "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": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.9", "versionEndExcluding": "6.6.158"}, {"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/f0afcec2129c166e61821d6ae097061155f01b12"}, {"url": "https://git.kernel.org/stable/c/b51f5a310bd6888b90bb9546a8081215dcfe6fbe"}, {"url": "https://git.kernel.org/stable/c/632f7acfe6dac1278a9314eaaab14fada400ddaf"}, {"url": "https://git.kernel.org/stable/c/41bee71112db53651ba9a9030de1b843255a4a7f"}, {"url": "https://git.kernel.org/stable/c/4a4e3fa77ea36d3419d806fb5883ef425a605a5d"}, {"url": "https://git.kernel.org/stable/c/ae97fff6495a8764bc0ef281cfe5444f701e527f"}], "title": "wifi: mac80211: mesh: release the channel if start 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": "f0afcec2129c166e61821d6ae097061155f01b12", "status": "affected", "version": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "versionType": "git"}, {"lessThan": "b51f5a310bd6888b90bb9546a8081215dcfe6fbe", "status": "affected", "version": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "versionType": "git"}, {"lessThan": "632f7acfe6dac1278a9314eaaab14fada400ddaf", "status": "affected", "version": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "versionType": "git"}, {"lessThan": "41bee71112db53651ba9a9030de1b843255a4a7f", "status": "affected", "version": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "versionType": "git"}, {"lessThan": "4a4e3fa77ea36d3419d806fb5883ef425a605a5d", "status": "affected", "version": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "versionType": "git"}, {"lessThan": "ae97fff6495a8764bc0ef281cfe5444f701e527f", "status": "affected", "version": "2b5e19677592c167d012c2d129407f39d2bdeb8d", "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": "6.1.*", "status": "unaffected", "version": "6.1.189", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "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: mesh: release the channel if start fails\n\nieee80211_join_mesh() acquires a channel context and then calls\nieee80211_start_mesh(), which can fail. In that case, the chanctx\nisn't released then interface removal will attempt to unassign it\nafter it's removed from the driver, hitting:\n\n wlan0: Failed check-sdata-in-driver check, flags: 0x0\n WARNING: net/mac80211/driver-ops.c:366 at drv_unassign_vif_chanctx\n ieee80211_assign_link_chanctx\n __ieee80211_link_release_channel\n ieee80211_link_release_channel\n ieee80211_teardown_sdata\n unregister_netdevice_many_notify\n _cfg80211_unregister_wdev\n ieee80211_remove_interfaces\n ieee80211_unregister_hw\n mac80211_hwsim_del_radio\n hwsim_exit_net\n\nCorrectly release the channel on start failures."}], "id": "CVE-2026-98326", "lastModified": "2026-10-19T10:18:34.797", "metrics": {}, "published": "2026-10-06T09:18:24.840", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/41bee71112db53651ba9a9030de1b843255a4a7f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4a4e3fa77ea36d3419d806fb5883ef425a605a5d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/632f7acfe6dac1278a9314eaaab14fada400ddaf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ae97fff6495a8764bc0ef281cfe5444f701e527f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b51f5a310bd6888b90bb9546a8081215dcfe6fbe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f0afcec2129c166e61821d6ae097061155f01b12"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: mac80211: mesh: release the channel if start fails", "id": "2546523", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546523"}, "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-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: mac80211: mesh: release the channel if start fails\nieee80211_join_mesh() acquires a channel context and then calls\nieee80211_start_mesh(), which can fail. In that case, the chanctx\nisn't released then interface removal will attempt to unassign it\nafter it's removed from the driver, hitting:\nwlan0: Failed check-sdata-in-driver check, flags: 0x0\nWARNING: net/mac80211/driver-ops.c:366 at drv_unassign_vif_chanctx\nieee80211_assign_link_chanctx\n__ieee80211_link_release_channel\nieee80211_link_release_channel\nieee80211_teardown_sdata\nunregister_netdevice_many_notify\n_cfg80211_unregister_wdev\nieee80211_remove_interfaces\nieee80211_unregister_hw\nmac80211_hwsim_del_radio\nhwsim_exit_net\nCorrectly release the channel on start failures.", "A flaw was found in the Linux kernel's mac80211 wireless subsystem. When an attempt to start a wireless mesh network fails, the channel context is not properly released. A local user could exploit this flaw during network interface removal, leading to driver state inconsistency and a potential Denial of Service (DoS)."], "name": "CVE-2026-98326", "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-2026-98326\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98326\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98326.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b5e19677592c167d012c2d129407f39d2bdeb8d,f0afcec2129c166e61821d6ae097061155f01b12)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b5e19677592c167d012c2d129407f39d2bdeb8d,b51f5a310bd6888b90bb9546a8081215dcfe6fbe)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b5e19677592c167d012c2d129407f39d2bdeb8d,632f7acfe6dac1278a9314eaaab14fada400ddaf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b5e19677592c167d012c2d129407f39d2bdeb8d,41bee71112db53651ba9a9030de1b843255a4a7f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b5e19677592c167d012c2d129407f39d2bdeb8d,4a4e3fa77ea36d3419d806fb5883ef425a605a5d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b5e19677592c167d012c2d129407f39d2bdeb8d,ae97fff6495a8764bc0ef281cfe5444f701e527f)"}}], "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": "semver", "value": "[0,3.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.189,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,6.7.0)"}}, {"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": "2026-10-06T13:00:15.829190+00:00", "updated": "2026-10-09T14:45:07.346991+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}