CVE-2024-50010

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They used to legitimately check for the\ncondition, but that got moved up in two commits:\n633fb6ac3980 (\"exec: move S_ISREG() check earlier\")\n0fd338b2d2cd (\"exec: move path_noexec() check earlier\")\n\nInstead of being removed said checks are WARN_ON'ed instead, which\nhas some debug value.\n\nHowever, the spurious path_noexec check is racy, resulting in\nunwarranted warnings should someone race with setting the noexec flag.\n\nOne can note there is more to perm-checking whether execve is allowed\nand none of the conditions are guaranteed to still hold after they were\ntested for.\n\nAdditionally this does not validate whether the code path did any perm\nchecking to begin with -- it will pass if the inode happens to be\nregular.\n\nKeep the redundant path_noexec() check even though it's mindless\nnonsense checking for guarantee that isn't given so drop the WARN.\n\nReword the commentary and do small tidy ups while here.\n\n[brauner: keep redundant path_noexec() check]"}], 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They used to legitimately check for the\ncondition, but that got moved up in two commits:\n633fb6ac3980 (\"exec: move S_ISREG() check earlier\")\n0fd338b2d2cd (\"exec: move path_noexec() check earlier\")\n\nInstead of being removed said checks are WARN_ON'ed instead, which\nhas some debug value.\n\nHowever, the spurious path_noexec check is racy, resulting in\nunwarranted warnings should someone race with setting the noexec flag.\n\nOne can note there is more to perm-checking whether execve is allowed\nand none of the conditions are guaranteed to still hold after they were\ntested for.\n\nAdditionally this does not validate whether the code path did any perm\nchecking to begin with -- it will pass if the inode happens to be\nregular.\n\nKeep the redundant path_noexec() check even though it's mindless\nnonsense checking for guarantee that isn't given so drop the WARN.\n\nReword the commentary and do small tidy ups while here.\n\n[brauner: keep redundant path_noexec() check]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: exec: no WARN para comprobaci\u00f3n atrevida de path_noexec Tanto las comprobaciones i_mode como noexec envueltas en WARN_ON provienen de un artefacto de la implementaci\u00f3n anterior. Sol\u00edan comprobar leg\u00edtimamente la condici\u00f3n, pero eso se movi\u00f3 hacia arriba en dos confirmaciones: 633fb6ac3980 (\"exec: mover la comprobaci\u00f3n S_ISREG() antes\") 0fd338b2d2cd (\"exec: mover la comprobaci\u00f3n path_noexec() antes\") En lugar de eliminarse, dichas comprobaciones se WARN_ON, lo que tiene alg\u00fan valor de depuraci\u00f3n. Sin embargo, la comprobaci\u00f3n falsa path_noexec es atrevida, lo que resulta en advertencias injustificadas si alguien se apresura a configurar el indicador noexec. Se puede notar que hay m\u00e1s para comprobar si se permite execve y no se garantiza que ninguna de las condiciones siga siendo v\u00e1lida despu\u00e9s de que se probaron. Adem\u00e1s, esto no valida si la ruta del c\u00f3digo realiz\u00f3 alguna verificaci\u00f3n de permisos para comenzar; pasar\u00e1 si el inodo resulta ser regular. Mantenga la verificaci\u00f3n redundante path_noexec() aunque sea una verificaci\u00f3n sin sentido de garant\u00eda que no se proporciona, as\u00ed que elimine la ADVERTENCIA. Reformule el comentario y haga peque\u00f1as correcciones mientras est\u00e9 aqu\u00ed. [brauner: mantenga la verificaci\u00f3n redundante path_noexec()]"}], "id": "CVE-2024-50010", "lastModified": "2026-10-15T01:19:04.583", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-50010", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-10-22T13:28:46.297827Z", "version": "2.0.3"}}]}, "published": "2024-10-21T19:15:04.523", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0bdf77be2330062b3a64f2bec39f62ab874a6796"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0d16f53c91111cec914f0811fcc526a2ba77b20d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0d196e7589cefe207d5d41f37a0a28a1fdeeb7c6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b723f96407a0a078cf75970e4dbf16b46d286a61"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c9b77438077d5a20c79ead95bcdaf9bd4797baaf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.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: exec: don't WARN for racy path_noexec check", "id": "2320490", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320490"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-362", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nexec: don't WARN for racy path_noexec check\nBoth i_mode and noexec checks wrapped in WARN_ON stem from an artifact\nof the previous implementation. They used to legitimately check for the\ncondition, but that got moved up in two commits:\n633fb6ac3980 (\"exec: move S_ISREG() check earlier\")\n0fd338b2d2cd (\"exec: move path_noexec() check earlier\")\nInstead of being removed said checks are WARN_ON'ed instead, which\nhas some debug value.\nHowever, the spurious path_noexec check is racy, resulting in\nunwarranted warnings should someone race with setting the noexec flag.\nOne can note there is more to perm-checking whether execve is allowed\nand none of the conditions are guaranteed to still hold after they were\ntested for.\nAdditionally this does not validate whether the code path did any perm\nchecking to begin with -- it will pass if the inode happens to be\nregular.\nKeep the redundant path_noexec() check even though it's mindless\nnonsense checking for guarantee that isn't given so drop the WARN.\nReword the commentary and do small tidy ups while here.\n[brauner: keep redundant path_noexec() check]"], "name": "CVE-2024-50010", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50010\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50010\nhttps://lore.kernel.org/linux-cve-announce/2024102109-CVE-2024-50010-57e8@gregkh/T"], "threat_severity": "Moderate"}

{}