CVE-2024-40996

{"id": "CVE-2024-40996", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2024-07-12T13:15:20.740", "references": [{"url": "https://git.kernel.org/stable/c/2bbe3e5a2f4ef69d13be54f1cf895b4658287080", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5e90258303a358e88737afb5048bee9113beea3a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7f9644782c559635bd676c12c59389a34ed7c866", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/dacc15e9cb248d19e5fc63c54bef0b9b55007761", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/2bbe3e5a2f4ef69d13be54f1cf895b4658287080", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/5e90258303a358e88737afb5048bee9113beea3a", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/7f9644782c559635bd676c12c59389a34ed7c866", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/dacc15e9cb248d19e5fc63c54bef0b9b55007761", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Avoid splat in pskb_pull_reason\n\nsyzkaller builds (CONFIG_DEBUG_NET=y) frequently trigger a debug\nhint in pskb_may_pull.\n\nWe'd like to retain this debug check because it might hint at integer\noverflows and other issues (kernel code should pull headers, not huge\nvalue).\n\nIn bpf case, this splat isn't interesting at all: such (nonsensical)\nbpf programs are typically generated by a fuzzer anyway.\n\nDo what Eric suggested and suppress such warning.\n\nFor CONFIG_DEBUG_NET=n we don't need the extra check because\npskb_may_pull will do the right thing: return an error without the\nWARN() backtrace."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bpf: evitar splat en pskb_pull_reason compilaciones de syzkaller (CONFIG_DEBUG_NET=y) frecuentemente activa una sugerencia de depuraci\u00f3n en pskb_may_pull. Nos gustar\u00eda conservar esta verificaci\u00f3n de depuraci\u00f3n porque podr\u00eda indicar desbordamientos de enteros y otros problemas (el c\u00f3digo del kernel debe extraer encabezados, no valores enormes). En el caso de bpf, este s\u00edmbolo no es nada interesante: estos programas bpf (sin sentido) normalmente son generados por un fuzzer de todos modos. Haga lo que Eric sugiri\u00f3 y suprima esa advertencia. Para CONFIG_DEBUG_NET=n no necesitamos la verificaci\u00f3n adicional porque pskb_may_pull har\u00e1 lo correcto: devolver un error sin el rastreo WARN()."}], "lastModified": "2025-11-03T22:17:21.500", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "57BC82B2-9518-4E49-8B35-1E0659D07153", "versionEndExcluding": "6.1.96", "versionStartIncluding": "6.1.86"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "11D787AB-6330-424C-8EDA-145219D31344", "versionEndExcluding": "6.6.36", "versionStartIncluding": "6.6.27"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1833E4E3-20C1-46FE-BE78-1FA23B2452C0", "versionEndExcluding": "6.9.7", "versionStartIncluding": "6.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "331C2F14-12C7-45D5-893D-8C52EE38EA10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3173713D-909A-4DD3-9DD4-1E171EB057EE"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "79F18AFA-40F7-43F0-BA30-7BDB65F918B9"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}