{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-50195", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.968Z", "datePublished": "2024-11-08T05:54:10.183Z", "dateUpdated": "2025-11-03T22:26:50.538Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:48:26.517Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nposix-clock: Fix missing timespec64 check in pc_clock_settime()\n\nAs Andrew pointed out, it will make sense that the PTP core\nchecked timespec64 struct's tv_sec and tv_nsec range before calling\nptp->info->settime64().\n\nAs the man manual of clock_settime() said, if tp.tv_sec is negative or\ntp.tv_nsec is outside the range [0..999,999,999], it should return EINVAL,\nwhich include dynamic clocks which handles PTP clock, and the condition is\nconsistent with timespec64_valid(). As Thomas suggested, timespec64_valid()\nonly check the timespec is valid, but not ensure that the time is\nin a valid range, so check it ahead using timespec64_valid_strict()\nin pc_clock_settime() and return -EINVAL if not valid.\n\nThere are some drivers that use tp->tv_sec and tp->tv_nsec directly to\nwrite registers without validity checks and assume that the higher layer\nhas checked it, which is dangerous and will benefit from this, such as\nhclge_ptp_settime(), igb_ptp_settime_i210(), _rcar_gen4_ptp_settime(),\nand some drivers can remove the checks of itself."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/time/posix-clock.c"], "versions": [{"version": "0606f422b453f76c31ab2b1bd52943ff06a2dcf2", "lessThan": "29f085345cde24566efb751f39e5d367c381c584", "status": "affected", "versionType": "git"}, {"version": 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As Thomas suggested, timespec64_valid()\nonly check the timespec is valid, but not ensure that the time is\nin a valid range, so check it ahead using timespec64_valid_strict()\nin pc_clock_settime() and return -EINVAL if not valid.\n\nThere are some drivers that use tp->tv_sec and tp->tv_nsec directly to\nwrite registers without validity checks and assume that the higher layer\nhas checked it, which is dangerous and will benefit from this, such as\nhclge_ptp_settime(), igb_ptp_settime_i210(), _rcar_gen4_ptp_settime(),\nand some drivers can remove the checks of itself."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.323", "versionStartIncluding": "2.6.39"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.285", "versionStartIncluding": "2.6.39"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.228", "versionStartIncluding": "2.6.39"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.169", "versionStartIncluding": "2.6.39"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.114", "versionStartIncluding": "2.6.39"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.58", "versionStartIncluding": "2.6.39"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11.5", "versionStartIncluding": "2.6.39"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12", "versionStartIncluding": "2.6.39"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:48:26.517Z"}}}, "cveMetadata": {"cveId": "CVE-2024-50195", "state": "PUBLISHED", "dateUpdated": "2025-10-01T20:27:07.870Z", "dateReserved": "2024-10-21T19:36:19.968Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-11-08T05:54:10.183Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

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As Thomas suggested, timespec64_valid()\nonly check the timespec is valid, but not ensure that the time is\nin a valid range, so check it ahead using timespec64_valid_strict()\nin pc_clock_settime() and return -EINVAL if not valid.\n\nThere are some drivers that use tp->tv_sec and tp->tv_nsec directly to\nwrite registers without validity checks and assume that the higher layer\nhas checked it, which is dangerous and will benefit from this, such as\nhclge_ptp_settime(), igb_ptp_settime_i210(), _rcar_gen4_ptp_settime(),\nand some drivers can remove the checks of itself."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: posix-clock: Arreglar la comprobaci\u00f3n timespec64 faltante en pc_clock_settime() Como se\u00f1al\u00f3 Andrew, tendr\u00e1 sentido que el n\u00facleo PTP comprobara el rango tv_sec y tv_nsec de la estructura timespec64 antes de llamar a ptp->info->settime64(). Como dec\u00eda el manual de manual de clock_settime(), si tp.tv_sec es negativo o tp.tv_nsec est\u00e1 fuera del rango [0..999,999,999], deber\u00eda devolver EINVAL, que incluye relojes din\u00e1micos que manejan el reloj PTP, y la condici\u00f3n es consistente con timespec64_valid(). Como sugiri\u00f3 Thomas, timespec64_valid() solo comprueba que el timespec sea v\u00e1lido, pero no garantiza que el tiempo est\u00e9 en un rango v\u00e1lido, as\u00ed que compru\u00e9belo con antelaci\u00f3n usando timespec64_valid_strict() en pc_clock_settime() y devuelva -EINVAL si no es v\u00e1lido. Hay algunos controladores que usan tp->tv_sec y tp->tv_nsec directamente para escribir registros sin comprobaciones de validez y asumen que la capa superior lo ha comprobado, lo cual es peligroso y se beneficiar\u00e1 de esto, como hclge_ptp_settime(), igb_ptp_settime_i210(), _rcar_gen4_ptp_settime(), y algunos controladores pueden eliminar las comprobaciones de s\u00ed mismos."}], "id": "CVE-2024-50195", "lastModified": "2025-11-03T23:17:00.873", "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": "[email protected]", "type": "Primary"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-11-08T06:15:16.280", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1ff7247101af723731ea42ed565d54fb8f341264"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/27abbde44b6e71ee3891de13e1a228aa7ce95bfe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/29f085345cde24566efb751f39e5d367c381c584"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/673a1c5a2998acbd429d6286e6cad10f17f4f073"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a3f169e398215e71361774d13bf91a0101283ac2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c8789fbe2bbf75845e45302cba6ffa44e1884d01"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d8794ac20a299b647ba9958f6d657051fc51a540"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e0c966bd3e31911b57ef76cec4c5796ebd88e512"}, {"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"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-754"}], "source": "[email protected]", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-754"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: posix-clock: Fix missing timespec64 check in pc_clock_settime()", "id": "2324549", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2324549"}, "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-754", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nposix-clock: Fix missing timespec64 check in pc_clock_settime()\nAs Andrew pointed out, it will make sense that the PTP core\nchecked timespec64 struct's tv_sec and tv_nsec range before calling\nptp->info->settime64().\nAs the man manual of clock_settime() said, if tp.tv_sec is negative or\ntp.tv_nsec is outside the range [0..999,999,999], it should return EINVAL,\nwhich include dynamic clocks which handles PTP clock, and the condition is\nconsistent with timespec64_valid(). As Thomas suggested, timespec64_valid()\nonly check the timespec is valid, but not ensure that the time is\nin a valid range, so check it ahead using timespec64_valid_strict()\nin pc_clock_settime() and return -EINVAL if not valid.\nThere are some drivers that use tp->tv_sec and tp->tv_nsec directly to\nwrite registers without validity checks and assume that the higher layer\nhas checked it, which is dangerous and will benefit from this, such as\nhclge_ptp_settime(), igb_ptp_settime_i210(), _rcar_gen4_ptp_settime(),\nand some drivers can remove the checks of itself."], "name": "CVE-2024-50195", "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": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "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": "2024-11-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50195\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50195\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/tree/cve/published/2024/CVE-2024-50195.mbox"], "threat_severity": "Moderate"}