CVE-2026-98348

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98348", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.343Z", "datePublished": "2026-10-06T08:46:36.927Z", "dateUpdated": "2026-10-19T09:17:59.174Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:17:59.174Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libipw: reject too-short association responses\n\nlibipw_handle_assoc_resp() reads the capability, status and aid fields\nof the 30-byte association response prefix and then computes the\ninformation element length as\n\n\tstats->len - sizeof(*frame)\n\nstats->len is a u16 and sizeof() has type size_t, so the subtraction is\nevaluated as size_t and wraps instead of going negative. Truncating\nthat to the u16 length parameter of libipw_parse_info_param() turns a\nframe shorter than the fixed fields into a length near 64 KiB, and the\nparser then reads past the receive buffer.\n\nBoth the ipw2100 and ipw2200 management receive paths reach this\nfunction having established only that the frame carries the generic\n24-byte three-address header.\n\nReject the frame before any fixed field is touched.\n\nFound by an AI-assisted review of length arithmetic in management frame\nparsers. Verified with a KUnit case under Generic KASAN on arm64 under\nQEMU; I do not have the hardware, so it is not tested on a real device."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:A - The malformed input is an 802.11 Association Response management frame received over the air. ipw2100 (isr_rx path) and ipw2200 (ipw_handle_mgmt_packet) send it through libipw_rx_mgt() into libipw_handle_assoc_resp(). The attacker must be within WiFi radio range.\nAC:L - The attacker only has to send an ASSOC_RESP frame of 24-29 bytes. The drivers check only for the 24-byte header, so stats->len - sizeof(*frame) (30) wraps to about 64K in the u16 length passed to libipw_parse_info_param(). No race or special state is involved.\nPR:N - libipw_rx_mgt() processes management frames before any 802.11 authentication or key exchange. An unauthenticated nearby transmitter can inject the frame.\nUI:N - The frame is processed in the receive path as soon as the interface is up. The victim does nothing.\nS:U - The out-of-bounds read stays inside the host kernel's own memory and crosses no virtualization or IOMMU boundary.\nC:L - libipw_parse_info_param() walks up to about 64KB of memory past the receive buffer. Those bytes only fill a local libipw_network on the stack, and through the QoS IE path the qos_data that goes to firmware. Nothing is returned to the attacker, so the disclosure is limited and indirect.\nI:N - The bug is read-only. Every copy from the parsed IEs is bounded (min() on ssid/rates, an exact-size check in libipw_read_qos_param_element) and lands in the fixed-size local network struct, so nothing is written out of bounds.\nA:H - Iterating about 64KB of information elements past a few-KB skb/DMA receive buffer can hit unmapped pages (or KASAN/KFENCE) and oops the kernel. Any station in range can resend the short frame repeatedly."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/intel/ipw2x00/libipw_rx.c"], "versions": [{"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "lessThan": "766268b429ae26d8ca599031fa962b0fe4673120", "status": "affected", "versionType": "git"}, {"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "lessThan": "d70bdb84cf1782039384c1ffa7a18b0303c286a7", "status": "affected", "versionType": "git"}, {"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "lessThan": "400b89217058fac672134a0d4092c8493dadb8ad", "status": "affected", "versionType": "git"}, {"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "lessThan": "46aa75291056b6dc5faaf956dffdb3e9662477b0", "status": "affected", "versionType": "git"}, {"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "lessThan": "e3025ecdb2057f866c09e059fc1466e81d6f243e", "status": "affected", "versionType": "git"}, {"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "lessThan": "14cb425ba1f3a5d849e3bbc3d02d84e0ae195dbb", "status": "affected", "versionType": "git"}, {"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "lessThan": "af1b69be19c34e28c0ae54bee954b58cd076969a", "status": "affected", "versionType": "git"}, {"version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "lessThan": "adb7118b7d2cfd7e8213c17d7d2829f353017754", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/intel/ipw2x00/libipw_rx.c"], "versions": [{"version": "2.6.15", "status": "affected"}, {"version": "0", "lessThan": "2.6.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.271", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.222", "lessThanOrEqual": "5.15.*", "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": "2.6.15", "versionEndExcluding": "5.10.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.15", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/766268b429ae26d8ca599031fa962b0fe4673120"}, {"url": "https://git.kernel.org/stable/c/d70bdb84cf1782039384c1ffa7a18b0303c286a7"}, {"url": "https://git.kernel.org/stable/c/400b89217058fac672134a0d4092c8493dadb8ad"}, {"url": "https://git.kernel.org/stable/c/46aa75291056b6dc5faaf956dffdb3e9662477b0"}, {"url": "https://git.kernel.org/stable/c/e3025ecdb2057f866c09e059fc1466e81d6f243e"}, {"url": "https://git.kernel.org/stable/c/14cb425ba1f3a5d849e3bbc3d02d84e0ae195dbb"}, {"url": "https://git.kernel.org/stable/c/af1b69be19c34e28c0ae54bee954b58cd076969a"}, {"url": "https://git.kernel.org/stable/c/adb7118b7d2cfd7e8213c17d7d2829f353017754"}], "title": "wifi: libipw: reject too-short association responses", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/intel/ipw2x00/libipw_rx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "766268b429ae26d8ca599031fa962b0fe4673120", "status": "affected", "version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "versionType": "git"}, {"lessThan": "d70bdb84cf1782039384c1ffa7a18b0303c286a7", "status": "affected", "version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "versionType": "git"}, {"lessThan": "400b89217058fac672134a0d4092c8493dadb8ad", "status": "affected", "version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "versionType": "git"}, {"lessThan": "46aa75291056b6dc5faaf956dffdb3e9662477b0", "status": "affected", "version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "versionType": "git"}, {"lessThan": "e3025ecdb2057f866c09e059fc1466e81d6f243e", "status": "affected", "version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "versionType": "git"}, {"lessThan": "14cb425ba1f3a5d849e3bbc3d02d84e0ae195dbb", "status": "affected", "version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "versionType": "git"}, {"lessThan": "af1b69be19c34e28c0ae54bee954b58cd076969a", "status": "affected", "version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "versionType": "git"}, {"lessThan": "adb7118b7d2cfd7e8213c17d7d2829f353017754", "status": "affected", "version": "9e8571affd1c54b9638b4ff9844e47aae07310f6", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/intel/ipw2x00/libipw_rx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.15"}, {"lessThan": "2.6.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.271", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.222", "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: libipw: reject too-short association responses\n\nlibipw_handle_assoc_resp() reads the capability, status and aid fields\nof the 30-byte association response prefix and then computes the\ninformation element length as\n\n\tstats->len - sizeof(*frame)\n\nstats->len is a u16 and sizeof() has type size_t, so the subtraction is\nevaluated as size_t and wraps instead of going negative. Truncating\nthat to the u16 length parameter of libipw_parse_info_param() turns a\nframe shorter than the fixed fields into a length near 64 KiB, and the\nparser then reads past the receive buffer.\n\nBoth the ipw2100 and ipw2200 management receive paths reach this\nfunction having established only that the frame carries the generic\n24-byte three-address header.\n\nReject the frame before any fixed field is touched.\n\nFound by an AI-assisted review of length arithmetic in management frame\nparsers. Verified with a KUnit case under Generic KASAN on arm64 under\nQEMU; I do not have the hardware, so it is not tested on a real device."}], "id": "CVE-2026-98348", "lastModified": "2026-10-19T10:18:37.357", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-10-06T09:18:27.963", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/14cb425ba1f3a5d849e3bbc3d02d84e0ae195dbb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/400b89217058fac672134a0d4092c8493dadb8ad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/46aa75291056b6dc5faaf956dffdb3e9662477b0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/766268b429ae26d8ca599031fa962b0fe4673120"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/adb7118b7d2cfd7e8213c17d7d2829f353017754"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/af1b69be19c34e28c0ae54bee954b58cd076969a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d70bdb84cf1782039384c1ffa7a18b0303c286a7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e3025ecdb2057f866c09e059fc1466e81d6f243e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: libipw: reject too-short association responses", "id": "2546516", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546516"}, "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-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: libipw: reject too-short association responses\nlibipw_handle_assoc_resp() reads the capability, status and aid fields\nof the 30-byte association response prefix and then computes the\ninformation element length as\nstats->len - sizeof(*frame)\nstats->len is a u16 and sizeof() has type size_t, so the subtraction is\nevaluated as size_t and wraps instead of going negative. Truncating\nthat to the u16 length parameter of libipw_parse_info_param() turns a\nframe shorter than the fixed fields into a length near 64 KiB, and the\nparser then reads past the receive buffer.\nBoth the ipw2100 and ipw2200 management receive paths reach this\nfunction having established only that the frame carries the generic\n24-byte three-address header.\nReject the frame before any fixed field is touched.\nFound by an AI-assisted review of length arithmetic in management frame\nparsers. Verified with a KUnit case under Generic KASAN on arm64 under\nQEMU; I do not have the hardware, so it is not tested on a real device.", "A flaw was found in the Linux kernel's libipw wireless driver. An attacker within Wi-Fi range can exploit this flaw by transmitting a malformed, abnormally short association response frame. Due to an improper packet length calculation, the driver performs an out-of-bounds memory read, which can cause a kernel crash leading to a Denial of Service (DoS) or potentially expose sensitive memory contents."], "name": "CVE-2026-98348", "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-2026-98348\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98348\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98348.mbox"], "threat_severity": "Moderate"}

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