CVE-2026-98335

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98335", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.342Z", "datePublished": "2026-10-06T08:46:26.816Z", "dateUpdated": "2026-10-19T09:17:46.461Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:17:46.461Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: abort chanswitch when leaving a mesh\n\nThe code in ieee80211_stop_mesh() leaves CSA active, but leaving\nthe mesh released the channel context, so the CSA finalize work\ncrashes:\n\n Oops: general protection fault, probably for non-canonical address\n 0xdffffc0000000003\n KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]\n RIP: 0010:ieee80211_put_srates_elem+0x42/0x640 net/mac80211/util.c:3272\n Call Trace:\n ieee80211_mesh_build_beacon+0xa83/0x1b50 net/mac80211/mesh.c:1093\n ieee80211_mesh_rebuild_beacon+0xc7/0x170 net/mac80211/mesh.c:1147\n ieee80211_mesh_finish_csa+0x131/0x210 net/mac80211/mesh.c:1542\n ieee80211_set_after_csa_beacon net/mac80211/cfg.c:4085 [inline]\n __ieee80211_csa_finalize net/mac80211/cfg.c:4133 [inline]\n ieee80211_csa_finalize+0x633/0x1150 net/mac80211/cfg.c:4155\n cfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438\n\nAbort the channel switch properly."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mac80211/mesh.c"], "versions": [{"version": "b8456a14e9d2770846fcf74de18ff95b676149a3", "lessThan": "bc544ef02327edf61c94d2b6bae9d14b217009b2", "status": "affected", "versionType": "git"}, {"version": "b8456a14e9d2770846fcf74de18ff95b676149a3", "lessThan": "2e1d6e80148495e728a85a9250176f266312e55c", "status": "affected", "versionType": "git"}, {"version": "b8456a14e9d2770846fcf74de18ff95b676149a3", "lessThan": "d222fdc973bb8dbf0357772bd9042ffdc8291939", "status": "affected", "versionType": "git"}, {"version": "b8456a14e9d2770846fcf74de18ff95b676149a3", "lessThan": "ac7472a24bd433b81c06582835dd1d5547c10da9", "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/mesh.c"], "versions": [{"version": "3.13", "status": "affected"}, {"version": "0", "lessThan": "3.13", "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": "3.13", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/bc544ef02327edf61c94d2b6bae9d14b217009b2"}, {"url": "https://git.kernel.org/stable/c/2e1d6e80148495e728a85a9250176f266312e55c"}, {"url": "https://git.kernel.org/stable/c/d222fdc973bb8dbf0357772bd9042ffdc8291939"}, {"url": "https://git.kernel.org/stable/c/ac7472a24bd433b81c06582835dd1d5547c10da9"}], "title": "wifi: mac80211: abort chanswitch when leaving a mesh", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/mac80211/mesh.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "bc544ef02327edf61c94d2b6bae9d14b217009b2", "status": "affected", "version": "b8456a14e9d2770846fcf74de18ff95b676149a3", "versionType": "git"}, {"lessThan": "2e1d6e80148495e728a85a9250176f266312e55c", "status": "affected", "version": "b8456a14e9d2770846fcf74de18ff95b676149a3", "versionType": "git"}, {"lessThan": "d222fdc973bb8dbf0357772bd9042ffdc8291939", "status": "affected", "version": "b8456a14e9d2770846fcf74de18ff95b676149a3", "versionType": "git"}, {"lessThan": "ac7472a24bd433b81c06582835dd1d5547c10da9", "status": "affected", "version": "b8456a14e9d2770846fcf74de18ff95b676149a3", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/mac80211/mesh.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.13"}, {"lessThan": "3.13", "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: abort chanswitch when leaving a mesh\n\nThe code in ieee80211_stop_mesh() leaves CSA active, but leaving\nthe mesh released the channel context, so the CSA finalize work\ncrashes:\n\n Oops: general protection fault, probably for non-canonical address\n 0xdffffc0000000003\n KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]\n RIP: 0010:ieee80211_put_srates_elem+0x42/0x640 net/mac80211/util.c:3272\n Call Trace:\n ieee80211_mesh_build_beacon+0xa83/0x1b50 net/mac80211/mesh.c:1093\n ieee80211_mesh_rebuild_beacon+0xc7/0x170 net/mac80211/mesh.c:1147\n ieee80211_mesh_finish_csa+0x131/0x210 net/mac80211/mesh.c:1542\n ieee80211_set_after_csa_beacon net/mac80211/cfg.c:4085 [inline]\n __ieee80211_csa_finalize net/mac80211/cfg.c:4133 [inline]\n ieee80211_csa_finalize+0x633/0x1150 net/mac80211/cfg.c:4155\n cfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438\n\nAbort the channel switch properly."}], "id": "CVE-2026-98335", "lastModified": "2026-10-19T10:18:35.743", "metrics": {}, "published": "2026-10-06T09:18:26.040", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2e1d6e80148495e728a85a9250176f266312e55c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ac7472a24bd433b81c06582835dd1d5547c10da9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bc544ef02327edf61c94d2b6bae9d14b217009b2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d222fdc973bb8dbf0357772bd9042ffdc8291939"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: mac80211: abort chanswitch when leaving a mesh", "id": "2546390", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546390"}, "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-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: mac80211: abort chanswitch when leaving a mesh\nThe code in ieee80211_stop_mesh() leaves CSA active, but leaving\nthe mesh released the channel context, so the CSA finalize work\ncrashes:\nOops: general protection fault, probably for non-canonical address\n0xdffffc0000000003\nKASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]\nRIP: 0010:ieee80211_put_srates_elem+0x42/0x640 net/mac80211/util.c:3272\nCall Trace:\nieee80211_mesh_build_beacon+0xa83/0x1b50 net/mac80211/mesh.c:1093\nieee80211_mesh_rebuild_beacon+0xc7/0x170 net/mac80211/mesh.c:1147\nieee80211_mesh_finish_csa+0x131/0x210 net/mac80211/mesh.c:1542\nieee80211_set_after_csa_beacon net/mac80211/cfg.c:4085 [inline]\n__ieee80211_csa_finalize net/mac80211/cfg.c:4133 [inline]\nieee80211_csa_finalize+0x633/0x1150 net/mac80211/cfg.c:4155\ncfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438\nAbort the channel switch properly.", "A flaw was found in the Linux kernel's mac80211 wireless networking subsystem. When a wireless interface disconnects from a mesh network while a channel switch announcement is in progress, the system releases the channel context without properly canceling the ongoing switch operation. A local user managing network configurations can trigger this flaw to cause a kernel crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-98335", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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": "Not affected", "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": "Not affected", "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-2026-98335\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98335\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98335.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b8456a14e9d2770846fcf74de18ff95b676149a3,bc544ef02327edf61c94d2b6bae9d14b217009b2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b8456a14e9d2770846fcf74de18ff95b676149a3,2e1d6e80148495e728a85a9250176f266312e55c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b8456a14e9d2770846fcf74de18ff95b676149a3,d222fdc973bb8dbf0357772bd9042ffdc8291939)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b8456a14e9d2770846fcf74de18ff95b676149a3,ac7472a24bd433b81c06582835dd1d5547c10da9)"}}], "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": "3.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.54,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.8,8.0.0)"}}, {"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": "2026-10-06T14:30:07.738039+00:00", "updated": "2026-10-11T04:15:08.343741+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}