CVE-2026-98481

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98481", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.352Z", "datePublished": "2026-10-18T15:15:55.360Z", "dateUpdated": "2026-10-19T09:20:18.735Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:20:18.735Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: port100: reject frames whose declared length exceeds the received data\n\nport100_recv_response() passes the URB transfer buffer to\nport100_rx_frame_is_valid(), which checksums le16_to_cpu(frame->datalen)\nbytes of frame->data. datalen is a 16-bit field supplied by the device\nand is never checked against the number of bytes actually received\n(urb->actual_length), so a device reporting a datalen larger than the\nreceived frame makes port100_data_checksum() read out of bounds past the\ntransfer buffer.\n\nReject a response whose declared frame size does not fit the received\nlength before validating it.\n\nFound by 0sec (https://0sec.ai) using automated source analysis; the\nmissing bound is evident from source. Compile-tested."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nfc/port100.c"], "versions": [{"version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "lessThan": "0d482995f0cdd0302450aa300c684c642d8ab31f", "status": "affected", "versionType": "git"}, {"version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "lessThan": "9e8df087826b9999d1b83b06f5d85675d5a69c9e", "status": "affected", "versionType": "git"}, {"version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "lessThan": "db66a30588630c7de30ef033f00daddef69f6ad9", "status": "affected", "versionType": "git"}, {"version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "lessThan": "144ad477c381e2c592b64898d04ab4ce03b32861", "status": "affected", "versionType": "git"}, {"version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "lessThan": "e4da1452e10c6472a4bac48dc2f6a35fff1fcd69", "status": "affected", "versionType": "git"}, {"version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "lessThan": "14b1467cfc6630583650f33538174c5a1ec685ab", "status": "affected", "versionType": "git"}, {"version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "lessThan": "035056e07ea65be670284246d9bc62f2f00ff4a3", "status": "affected", "versionType": "git"}, {"version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "lessThan": "092c6a605cbd6414ef499834c2e0da69c2c3388e", "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/nfc/port100.c"], "versions": [{"version": "3.13", "status": "affected"}, {"version": "0", "lessThan": "3.13", "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": "6.18.55", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.9", "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": "5.10.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.6.158"}, {"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": "6.18.55"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "7.2.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0d482995f0cdd0302450aa300c684c642d8ab31f"}, {"url": "https://git.kernel.org/stable/c/9e8df087826b9999d1b83b06f5d85675d5a69c9e"}, {"url": "https://git.kernel.org/stable/c/db66a30588630c7de30ef033f00daddef69f6ad9"}, {"url": "https://git.kernel.org/stable/c/144ad477c381e2c592b64898d04ab4ce03b32861"}, {"url": "https://git.kernel.org/stable/c/e4da1452e10c6472a4bac48dc2f6a35fff1fcd69"}, {"url": "https://git.kernel.org/stable/c/14b1467cfc6630583650f33538174c5a1ec685ab"}, {"url": "https://git.kernel.org/stable/c/035056e07ea65be670284246d9bc62f2f00ff4a3"}, {"url": "https://git.kernel.org/stable/c/092c6a605cbd6414ef499834c2e0da69c2c3388e"}], "title": "nfc: port100: reject frames whose declared length exceeds the received data", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/nfc/port100.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "0d482995f0cdd0302450aa300c684c642d8ab31f", "status": "affected", "version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "versionType": "git"}, {"lessThan": "9e8df087826b9999d1b83b06f5d85675d5a69c9e", "status": "affected", "version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "versionType": "git"}, {"lessThan": "db66a30588630c7de30ef033f00daddef69f6ad9", "status": "affected", "version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "versionType": "git"}, {"lessThan": "144ad477c381e2c592b64898d04ab4ce03b32861", "status": "affected", "version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "versionType": "git"}, {"lessThan": "e4da1452e10c6472a4bac48dc2f6a35fff1fcd69", "status": "affected", "version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "versionType": "git"}, {"lessThan": "14b1467cfc6630583650f33538174c5a1ec685ab", "status": "affected", "version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "versionType": "git"}, {"lessThan": "035056e07ea65be670284246d9bc62f2f00ff4a3", "status": "affected", "version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "versionType": "git"}, {"lessThan": "092c6a605cbd6414ef499834c2e0da69c2c3388e", "status": "affected", "version": "562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/nfc/port100.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": "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": "6.18.55", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.9", "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\nnfc: port100: reject frames whose declared length exceeds the received data\n\nport100_recv_response() passes the URB transfer buffer to\nport100_rx_frame_is_valid(), which checksums le16_to_cpu(frame->datalen)\nbytes of frame->data. datalen is a 16-bit field supplied by the device\nand is never checked against the number of bytes actually received\n(urb->actual_length), so a device reporting a datalen larger than the\nreceived frame makes port100_data_checksum() read out of bounds past the\ntransfer buffer.\n\nReject a response whose declared frame size does not fit the received\nlength before validating it.\n\nFound by 0sec (https://0sec.ai) using automated source analysis; the\nmissing bound is evident from source. Compile-tested."}], "id": "CVE-2026-98481", "lastModified": "2026-10-19T10:18:59.333", "metrics": {}, "published": "2026-10-18T16:16:58.697", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/035056e07ea65be670284246d9bc62f2f00ff4a3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/092c6a605cbd6414ef499834c2e0da69c2c3388e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0d482995f0cdd0302450aa300c684c642d8ab31f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/144ad477c381e2c592b64898d04ab4ce03b32861"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/14b1467cfc6630583650f33538174c5a1ec685ab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9e8df087826b9999d1b83b06f5d85675d5a69c9e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/db66a30588630c7de30ef033f00daddef69f6ad9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e4da1452e10c6472a4bac48dc2f6a35fff1fcd69"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: nfc: port100: reject frames whose declared length exceeds the received data", "id": "2554858", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2554858"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.2", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/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:\nnfc: port100: reject frames whose declared length exceeds the received data\nport100_recv_response() passes the URB transfer buffer to\nport100_rx_frame_is_valid(), which checksums le16_to_cpu(frame->datalen)\nbytes of frame->data. datalen is a 16-bit field supplied by the device\nand is never checked against the number of bytes actually received\n(urb->actual_length), so a device reporting a datalen larger than the\nreceived frame makes port100_data_checksum() read out of bounds past the\ntransfer buffer.\nReject a response whose declared frame size does not fit the received\nlength before validating it.\nFound by 0sec (https://0sec.ai) using automated source analysis; the\nmissing bound is evident from source. Compile-tested.", "A flaw was found in the Linux kernel's Near Field Communication (NFC) Port-100 driver. An attacker connecting a malicious USB device can provide a response frame whose declared length exceeds the actual received data size. This flaw causes an out-of-bounds memory read during frame validation, which can lead to a system crash and a Denial of Service (DoS)."], "name": "CVE-2026-98481", "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": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98481\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98481\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98481.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06,0d482995f0cdd0302450aa300c684c642d8ab31f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06,9e8df087826b9999d1b83b06f5d85675d5a69c9e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06,db66a30588630c7de30ef033f00daddef69f6ad9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06,144ad477c381e2c592b64898d04ab4ce03b32861)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06,e4da1452e10c6472a4bac48dc2f6a35fff1fcd69)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06,14b1467cfc6630583650f33538174c5a1ec685ab)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06,035056e07ea65be670284246d9bc62f2f00ff4a3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06,092c6a605cbd6414ef499834c2e0da69c2c3388e)"}}], "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": "[5.10.271,6.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.222,6.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.189,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.55,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.9,8.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc5,*]"}}], "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": "2026-10-19T00:15:14.332350+00:00", "updated": "2026-10-22T22:45:13.864184+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}