CVE-2026-93807

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93807", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-18T17:59:28.790Z", "datePublished": "2026-09-24T16:02:41.356Z", "dateUpdated": "2026-10-03T10:57:40.321Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-03T10:57:40.321Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers\n\nrsi_hal_load_key() copies tx_mic_key and rx_mic_key from data[16] and\ndata[24] whenever key data is present. Those offsets are only part of\nthe 32-byte TKIP key layout. Shorter keys used by other ciphers, such as\nCCMP, do not provide those bytes, so the unconditional copies can read\npast the supplied key buffer.\n\nOnly copy the MIC keys for TKIP, and reject malformed TKIP keys that are\nshorter than the expected 32-byte layout.\n\n[drop useless length check]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/rsi/rsi_91x_mgmt.c"], "versions": [{"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "lessThan": "6937b06d55b528e961feff8cc083b97ede622e02", "status": "affected", "versionType": "git"}, {"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "lessThan": "ebd7172f8c4edc232738ef50338fb773c6f6c208", "status": "affected", "versionType": "git"}, {"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "lessThan": "6b6690ac5c35e803df14afdc44312d11e8a60893", "status": "affected", "versionType": "git"}, {"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "lessThan": "5207727e53fba1e3a6fce9b2c15b6b8b06c6438b", "status": "affected", "versionType": "git"}, {"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "lessThan": "5902e3c08c63d65724772f74d65b9fb032625dca", "status": "affected", "versionType": "git"}, {"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "lessThan": "55b86ef6c2e68879ffd95203b011ef42a013ab88", "status": "affected", "versionType": "git"}, {"version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "lessThan": "843fe9bc583b7686ca68312ac9319c9240a73c03", "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/rsi/rsi_91x_mgmt.c"], "versions": [{"version": "3.15", "status": "affected"}, {"version": "0", "lessThan": "3.15", "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": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "3.15", "versionEndExcluding": "5.10.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6937b06d55b528e961feff8cc083b97ede622e02"}, {"url": "https://git.kernel.org/stable/c/ebd7172f8c4edc232738ef50338fb773c6f6c208"}, {"url": "https://git.kernel.org/stable/c/6b6690ac5c35e803df14afdc44312d11e8a60893"}, {"url": "https://git.kernel.org/stable/c/5207727e53fba1e3a6fce9b2c15b6b8b06c6438b"}, {"url": "https://git.kernel.org/stable/c/5902e3c08c63d65724772f74d65b9fb032625dca"}, {"url": "https://git.kernel.org/stable/c/55b86ef6c2e68879ffd95203b011ef42a013ab88"}, {"url": "https://git.kernel.org/stable/c/843fe9bc583b7686ca68312ac9319c9240a73c03"}], "title": "wifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/rsi/rsi_91x_mgmt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6937b06d55b528e961feff8cc083b97ede622e02", "status": "affected", "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "versionType": "git"}, {"lessThan": "ebd7172f8c4edc232738ef50338fb773c6f6c208", "status": "affected", "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "versionType": "git"}, {"lessThan": "6b6690ac5c35e803df14afdc44312d11e8a60893", "status": "affected", "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "versionType": "git"}, {"lessThan": "5207727e53fba1e3a6fce9b2c15b6b8b06c6438b", "status": "affected", "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "versionType": "git"}, {"lessThan": "5902e3c08c63d65724772f74d65b9fb032625dca", "status": "affected", "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "versionType": "git"}, {"lessThan": "55b86ef6c2e68879ffd95203b011ef42a013ab88", "status": "affected", "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "versionType": "git"}, {"lessThan": "843fe9bc583b7686ca68312ac9319c9240a73c03", "status": "affected", "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/rsi/rsi_91x_mgmt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.15"}, {"lessThan": "3.15", "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": "6.12.111", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers\n\nrsi_hal_load_key() copies tx_mic_key and rx_mic_key from data[16] and\ndata[24] whenever key data is present. Those offsets are only part of\nthe 32-byte TKIP key layout. Shorter keys used by other ciphers, such as\nCCMP, do not provide those bytes, so the unconditional copies can read\npast the supplied key buffer.\n\nOnly copy the MIC keys for TKIP, and reject malformed TKIP keys that are\nshorter than the expected 32-byte layout.\n\n[drop useless length check]"}], "id": "CVE-2026-93807", "lastModified": "2026-10-03T11:17:50.480", "metrics": {}, "published": "2026-09-24T17:17:13.683", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5207727e53fba1e3a6fce9b2c15b6b8b06c6438b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/55b86ef6c2e68879ffd95203b011ef42a013ab88"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5902e3c08c63d65724772f74d65b9fb032625dca"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6937b06d55b528e961feff8cc083b97ede622e02"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6b6690ac5c35e803df14afdc44312d11e8a60893"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/843fe9bc583b7686ca68312ac9319c9240a73c03"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ebd7172f8c4edc232738ef50338fb773c6f6c208"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers", "id": "2540474", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2540474"}, "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: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers\nrsi_hal_load_key() copies tx_mic_key and rx_mic_key from data[16] and\ndata[24] whenever key data is present. Those offsets are only part of\nthe 32-byte TKIP key layout. Shorter keys used by other ciphers, such as\nCCMP, do not provide those bytes, so the unconditional copies can read\npast the supplied key buffer.\nOnly copy the MIC keys for TKIP, and reject malformed TKIP keys that are\nshorter than the expected 32-byte layout.\n[drop useless length check]", "A flaw was found in the Linux kernel's Redpine Signals (RSI) Wi-Fi driver. An attacker can trigger a Denial of Service (DoS) or information disclosure by configuring wireless encryption keys for ciphers with shorter key lengths than the Temporal Key Integrity Protocol (TKIP). The driver unconditionally reads key data from fixed memory offsets intended only for 32-byte TKIP keys, causing an out-of-bounds memory read when shorter key buffers are processed."], "name": "CVE-2026-93807", "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": "2026-09-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-93807\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-93807\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93807.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,5902e3c08c63d65724772f74d65b9fb032625dca)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,55b86ef6c2e68879ffd95203b011ef42a013ab88)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,843fe9bc583b7686ca68312ac9319c9240a73c03)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.12.111)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,6.18.53)"}}], "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": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.111,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.53,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "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": "2026-09-24T20:30:17.880055+00:00", "updated": "2026-10-01T17:45:09.982744+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}