CVE-2026-31737

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31737", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.137Z", "datePublished": "2026-05-01T14:14:34.229Z", "dateUpdated": "2026-11-10T12:45:36.020Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T22:14:47.200Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ftgmac100: fix ring allocation unwind on open failure\n\nftgmac100_alloc_rings() allocates rx_skbs, tx_skbs, rxdes, txdes, and\nrx_scratch in stages. On intermediate failures it returned -ENOMEM\ndirectly, leaking resources allocated earlier in the function.\n\nRework the failure path to use staged local unwind labels and free\nallocated resources in reverse order before returning -ENOMEM. This\nmatches common netdev allocation cleanup style."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/faraday/ftgmac100.c"], "versions": [{"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e", "lessThan": "184b3a500d60ea48d1b176103cff1706c456edf3", "status": "affected", "versionType": "git"}, {"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e", "lessThan": "78da43320d9d6ed788147fb085184e4fc801f057", "status": "affected", "versionType": "git"}, {"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e", "lessThan": "a7e1bf392acf11dc4209820fef75758f6e42bd65", "status": "affected", "versionType": "git"}, {"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e", "lessThan": "8a71911fc7eeea930153322bc1efc065db8cd97e", "status": "affected", "versionType": "git"}, {"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e", "lessThan": "d45230081f19c280096241353c26b0de457de795", "status": "affected", "versionType": "git"}, {"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e", "lessThan": "8351d18989c8642fc53e2e12d94e42314a39b078", "status": "affected", "versionType": "git"}, {"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e", "lessThan": "82f86111f0704ab2ded11a2033bc6cf0be3e09ea", "status": "affected", "versionType": "git"}, {"version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e", "lessThan": "c0fd0fe745f5e8c568d898cd1513d0083e46204a", "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/ethernet/faraday/ftgmac100.c"], "versions": [{"version": "4.12", "status": "affected"}, {"version": "0", "lessThan": "4.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.253", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.203", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.168", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.134", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.81", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.22", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.12", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "4.12", "versionEndExcluding": "5.10.253"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.15.203"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.1.168"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.6.134"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.12.81"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.18.22"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.19.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/184b3a500d60ea48d1b176103cff1706c456edf3"}, {"url": "https://git.kernel.org/stable/c/78da43320d9d6ed788147fb085184e4fc801f057"}, {"url": "https://git.kernel.org/stable/c/a7e1bf392acf11dc4209820fef75758f6e42bd65"}, {"url": "https://git.kernel.org/stable/c/8a71911fc7eeea930153322bc1efc065db8cd97e"}, {"url": "https://git.kernel.org/stable/c/d45230081f19c280096241353c26b0de457de795"}, {"url": "https://git.kernel.org/stable/c/8351d18989c8642fc53e2e12d94e42314a39b078"}, {"url": "https://git.kernel.org/stable/c/82f86111f0704ab2ded11a2033bc6cf0be3e09ea"}, {"url": "https://git.kernel.org/stable/c/c0fd0fe745f5e8c568d898cd1513d0083e46204a"}], "title": "net: ftgmac100: fix ring allocation unwind on open failure", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"x_adpType": "supplier", "providerMetadata": {"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": 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{}

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"4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*", "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*", "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*", "matchCriteriaId": "58A9FEFF-C040-420D-8F0A-BFDAAA1DF258", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*", "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ftgmac100: fix ring allocation unwind on open failure\n\nftgmac100_alloc_rings() allocates rx_skbs, tx_skbs, rxdes, txdes, and\nrx_scratch in stages. On intermediate failures it returned -ENOMEM\ndirectly, leaking resources allocated earlier in the function.\n\nRework the failure path to use staged local unwind labels and free\nallocated resources in reverse order before returning -ENOMEM. This\nmatches common netdev allocation cleanup style."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: ftgmac100: corregir el deshacer de la asignaci\u00f3n de anillos en caso de fallo de apertura\n\nftgmac100_alloc_rings() asigna rx_skbs, tx_skbs, rxdes, txdes y rx_scratch en etapas. En caso de fallos intermedios, devolv\u00eda -ENOMEM directamente, fugando recursos asignados anteriormente en la funci\u00f3n.\n\nReestructurar la ruta de fallo para usar etiquetas de deshacer locales por etapas y liberar los recursos asignados en orden inverso antes de devolver -ENOMEM. Esto coincide con el estilo com\u00fan de limpieza de asignaci\u00f3n de netdev."}], "id": "CVE-2026-31737", "lastModified": "2026-11-11T21:10:00.200", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-05-01T15:16:36.347", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/184b3a500d60ea48d1b176103cff1706c456edf3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/78da43320d9d6ed788147fb085184e4fc801f057"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/82f86111f0704ab2ded11a2033bc6cf0be3e09ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8351d18989c8642fc53e2e12d94e42314a39b078"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8a71911fc7eeea930153322bc1efc065db8cd97e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a7e1bf392acf11dc4209820fef75758f6e42bd65"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c0fd0fe745f5e8c568d898cd1513d0083e46204a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d45230081f19c280096241353c26b0de457de795"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: ftgmac100: fix ring allocation unwind on open failure", "id": "2464346", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464346"}, "csaw": false, "details": ["No description is available for this CVE."], "name": "CVE-2026-31737", "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"}], "public_date": "2026-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31737\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31737\nhttps://lore.kernel.org/linux-cve-announce/2026050138-CVE-2026-31737-1078@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e,184b3a500d60ea48d1b176103cff1706c456edf3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e,78da43320d9d6ed788147fb085184e4fc801f057)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e,a7e1bf392acf11dc4209820fef75758f6e42bd65)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e,8a71911fc7eeea930153322bc1efc065db8cd97e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e,d45230081f19c280096241353c26b0de457de795)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e,8351d18989c8642fc53e2e12d94e42314a39b078)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e,82f86111f0704ab2ded11a2033bc6cf0be3e09ea)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e,c0fd0fe745f5e8c568d898cd1513d0083e46204a)"}}], "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": "4.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.253,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.203,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.168,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.134,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.81,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.22,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.12,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "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": "2026-05-01T19:15:23.985383+00:00", "updated": "2026-05-07T22:30:36.251555+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-401"]}