{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-46780", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-09-11T15:12:18.276Z", "datePublished": "2024-09-18T07:12:36.736Z", "dateUpdated": "2024-09-18T07:12:36.736Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-09-18T07:12:36.736Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: protect references to superblock parameters exposed in sysfs\n\nThe superblock buffers of nilfs2 can not only be overwritten at runtime\nfor modifications/repairs, but they are also regularly swapped, replaced\nduring resizing, and even abandoned when degrading to one side due to\nbacking device issues. So, accessing them requires mutual exclusion using\nthe reader/writer semaphore \"nilfs->ns_sem\".\n\nSome sysfs attribute show methods read this superblock buffer without the\nnecessary mutual exclusion, which can cause problems with pointer\ndereferencing and memory access, so fix it."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/nilfs2/sysfs.c"], "versions": [{"version": "da7141fb78db", "lessThan": "b90beafac059", "status": "affected", "versionType": "git"}, {"version": "da7141fb78db", "lessThan": "ba97ba173f96", "status": "affected", "versionType": "git"}, {"version": "da7141fb78db", "lessThan": "157c0d94b4c4", "status": "affected", "versionType": "git"}, {"version": "da7141fb78db", "lessThan": "b14e7260bb69", "status": "affected", "versionType": "git"}, {"version": "da7141fb78db", "lessThan": "19cfeba0e4b8", "status": "affected", "versionType": "git"}, {"version": "da7141fb78db", "lessThan": "8c6e43b3d5f1", "status": "affected", "versionType": "git"}, {"version": "da7141fb78db", "lessThan": "962562d4c70c", "status": "affected", "versionType": "git"}, {"version": "da7141fb78db", "lessThan": "683408258917", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/nilfs2/sysfs.c"], "versions": [{"version": "3.17", "status": "affected"}, {"version": "0", "lessThan": "3.17", "status": "unaffected", "versionType": "custom"}, {"version": "4.19.322", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.4.284", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.10.226", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.15.167", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.1.110", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.6.51", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.10.10", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/b90beafac05931cbfcb6b1bd4f67c1923f47040e"}, {"url": "https://git.kernel.org/stable/c/ba97ba173f9625d5f34a986088979eae8b80d38e"}, {"url": "https://git.kernel.org/stable/c/157c0d94b4c40887329418c70ef4edd1a8d6b4ed"}, {"url": "https://git.kernel.org/stable/c/b14e7260bb691d7f563f61da07d61e3c8b59a614"}, {"url": "https://git.kernel.org/stable/c/19cfeba0e4b8eda51484fcf8cf7d150418e1d880"}, {"url": "https://git.kernel.org/stable/c/8c6e43b3d5f109cf9c61bc188fcc8175404e924f"}, {"url": "https://git.kernel.org/stable/c/962562d4c70c5cdeb4e955d63ff2017c4eca1aad"}, {"url": "https://git.kernel.org/stable/c/683408258917541bdb294cd717c210a04381931e"}], "title": "nilfs2: protect references to superblock parameters exposed in sysfs", "x_generator": {"engine": "bippy-c9c4e1df01b2"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: protect references to superblock parameters exposed in sysfs\n\nThe superblock buffers of nilfs2 can not only be overwritten at runtime\nfor modifications/repairs, but they are also regularly swapped, replaced\nduring resizing, and even abandoned when degrading to one side due to\nbacking device issues. So, accessing them requires mutual exclusion using\nthe reader/writer semaphore \"nilfs->ns_sem\".\n\nSome sysfs attribute show methods read this superblock buffer without the\nnecessary mutual exclusion, which can cause problems with pointer\ndereferencing and memory access, so fix it."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nilfs2: protege las referencias a los par\u00e1metros de superbloque expuestos en sysfs Los b\u00faferes de superbloque de nilfs2 no solo se pueden sobrescribir en tiempo de ejecuci\u00f3n para modificaciones/reparaciones, sino que tambi\u00e9n se intercambian regularmente, se reemplazan durante el cambio de tama\u00f1o e incluso se abandonan cuando se degradan a un lado debido a problemas con el dispositivo de respaldo. Por lo tanto, acceder a ellos requiere exclusi\u00f3n mutua utilizando el sem\u00e1foro de lectura/escritura \"nilfs->ns_sem\". Algunos m\u00e9todos de demostraci\u00f3n del atributo sysfs leen este b\u00fafer de superbloque sin la exclusi\u00f3n mutua necesaria, lo que puede causar problemas con la desreferenciaci\u00f3n de punteros y el acceso a la memoria, as\u00ed que arr\u00e9glelo."}], "id": "CVE-2024-46780", "lastModified": "2024-09-20T12:30:51.220", "metrics": {}, "published": "2024-09-18T08:15:05.473", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/157c0d94b4c40887329418c70ef4edd1a8d6b4ed"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/19cfeba0e4b8eda51484fcf8cf7d150418e1d880"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/683408258917541bdb294cd717c210a04381931e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8c6e43b3d5f109cf9c61bc188fcc8175404e924f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/962562d4c70c5cdeb4e955d63ff2017c4eca1aad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b14e7260bb691d7f563f61da07d61e3c8b59a614"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b90beafac05931cbfcb6b1bd4f67c1923f47040e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ba97ba173f9625d5f34a986088979eae8b80d38e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: nilfs2: protect references to superblock parameters exposed in sysfs", "id": "2313128", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2313128"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnilfs2: protect references to superblock parameters exposed in sysfs\nThe superblock buffers of nilfs2 can not only be overwritten at runtime\nfor modifications/repairs, but they are also regularly swapped, replaced\nduring resizing, and even abandoned when degrading to one side due to\nbacking device issues. So, accessing them requires mutual exclusion using\nthe reader/writer semaphore \"nilfs->ns_sem\".\nSome sysfs attribute show methods read this superblock buffer without the\nnecessary mutual exclusion, which can cause problems with pointer\ndereferencing and memory access, so fix it."], "name": "CVE-2024-46780", "package_state": [{"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": "2024-09-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-46780\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-46780\nhttps://lore.kernel.org/linux-cve-announce/2024091849-CVE-2024-46780-9155@gregkh/T"], "threat_severity": "Moderate"}