cve-2024-57892
Vulnerability from cvelistv5
Published
2025-01-15 13:05
Modified
2025-02-13 14:04
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv When mounting ocfs2 and then remounting it as read-only, a slab-use-after-free occurs after the user uses a syscall to quota_getnextquota. Specifically, sb_dqinfo(sb, type)->dqi_priv is the dangling pointer. During the remounting process, the pointer dqi_priv is freed but is never set as null leaving it to be accessed. Additionally, the read-only option for remounting sets the DQUOT_SUSPENDED flag instead of setting the DQUOT_USAGE_ENABLED flags. Moreover, later in the process of getting the next quota, the function ocfs2_get_next_id is called and only checks the quota usage flags and not the quota suspended flags. To fix this, I set dqi_priv to null when it is freed after remounting with read-only and put a check for DQUOT_SUSPENDED in ocfs2_get_next_id. [akpm@linux-foundation.org: coding-style cleanups]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2d431192486367eee03cc28d0b53b97dafcb8e63Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2e3d203b1adede46bbba049e497765d67865be18Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/58f9e20e2a7602e1dd649a1ec4790077c251cb6c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f3fd772d152229d94602bca243fbb658068a597Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8ff6f635a08c30559ded0c110c7ce03ba7747d11
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ba950a02d8d23811aa1120affd3adedcfac6153dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f44e6d70c100614c211703f065cad448050e4a0e
Impacted products
Vendor Product Version
Linux Linux Version: 8f9e8f5fcc059a3cba87ce837c88316797ef3645
Version: 8f9e8f5fcc059a3cba87ce837c88316797ef3645
Version: 8f9e8f5fcc059a3cba87ce837c88316797ef3645
Version: 8f9e8f5fcc059a3cba87ce837c88316797ef3645
Version: 8f9e8f5fcc059a3cba87ce837c88316797ef3645
Version: 8f9e8f5fcc059a3cba87ce837c88316797ef3645
Version: 8f9e8f5fcc059a3cba87ce837c88316797ef3645
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   Linux Linux Version: 4.6
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Moreover, later in the process of getting the\\nnext quota, the function ocfs2_get_next_id is called and only checks the\\nquota usage flags and not the quota suspended flags.\\n\\nTo fix this, I set dqi_priv to null when it is freed after remounting with\\nread-only and put a check for DQUOT_SUSPENDED in ocfs2_get_next_id.\\n\\n[akpm@linux-foundation.org: coding-style cleanups]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ocfs2: se corrige slab-use-after-free debido al puntero colgante dqi_priv Al montar ocfs2 y luego volver a montarlo como de solo lectura, se produce un slab-use-after-free despu\u00e9s de que el usuario usa una llamada al sistema a quota_getnextquota. Espec\u00edficamente, sb_dqinfo(sb, type)-\u0026gt;dqi_priv es el puntero colgante. Durante el proceso de remontaje, el puntero dqi_priv se libera pero nunca se establece como nulo, dej\u00e1ndolo para que se pueda acceder a \u00e9l. Adem\u00e1s, la opci\u00f3n de solo lectura para remontaje establece el indicador DQUOT_SUSPENDED en lugar de establecer los indicadores DQUOT_USAGE_ENABLED. Adem\u00e1s, m\u00e1s adelante en el proceso de obtenci\u00f3n de la siguiente cuota, se llama a la funci\u00f3n ocfs2_get_next_id y solo verifica los indicadores de uso de cuota y no los indicadores de cuota suspendida. Para solucionar esto, establezco dqi_priv en nulo cuando se libera despu\u00e9s de volver a montar con solo lectura y pongo una marca de verificaci\u00f3n para DQUOT_SUSPENDED en ocfs2_get_next_id. [akpm@linux-foundation.org: limpiezas de estilo de codificaci\u00f3n]\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.6\",\"versionEndExcluding\":\"6.1.125\",\"matchCriteriaId\":\"0059FB9D-6155-40A5-865D-6501E6450D1C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.70\",\"matchCriteriaId\":\"51E6CFF2-92AA-4936-95AB-2D068168A696\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.9\",\"matchCriteriaId\":\"1D13AF97-FFED-4B68-906D-CFE38D0B88DD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"62567B3C-6CEE-46D0-BC2E-B3717FBF7D13\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"5A073481-106D-4B15-B4C7-FB0213B8E1D4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"DE491969-75AE-4A6B-9A58-8FC5AF98798F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"93C0660D-7FB8-4FBA-892A-B064BA71E49E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"034C36A6-C481-41F3-AE9A-D116E5BE6895\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2d431192486367eee03cc28d0b53b97dafcb8e63\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/2e3d203b1adede46bbba049e497765d67865be18\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/58f9e20e2a7602e1dd649a1ec4790077c251cb6c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5f3fd772d152229d94602bca243fbb658068a597\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8ff6f635a08c30559ded0c110c7ce03ba7747d11\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ba950a02d8d23811aa1120affd3adedcfac6153d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f44e6d70c100614c211703f065cad448050e4a0e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"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\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-57892\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-13T13:55:16.692610Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-13T13:55:18.253Z\"}}], \"cna\": {\"title\": \"ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"8f9e8f5fcc059a3cba87ce837c88316797ef3645\", \"lessThan\": \"58f9e20e2a7602e1dd649a1ec4790077c251cb6c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8f9e8f5fcc059a3cba87ce837c88316797ef3645\", \"lessThan\": \"8ff6f635a08c30559ded0c110c7ce03ba7747d11\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8f9e8f5fcc059a3cba87ce837c88316797ef3645\", \"lessThan\": \"f44e6d70c100614c211703f065cad448050e4a0e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8f9e8f5fcc059a3cba87ce837c88316797ef3645\", \"lessThan\": \"2d431192486367eee03cc28d0b53b97dafcb8e63\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8f9e8f5fcc059a3cba87ce837c88316797ef3645\", \"lessThan\": \"2e3d203b1adede46bbba049e497765d67865be18\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8f9e8f5fcc059a3cba87ce837c88316797ef3645\", \"lessThan\": \"ba950a02d8d23811aa1120affd3adedcfac6153d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8f9e8f5fcc059a3cba87ce837c88316797ef3645\", \"lessThan\": \"5f3fd772d152229d94602bca243fbb658068a597\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/ocfs2/quota_global.c\", \"fs/ocfs2/quota_local.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.6\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.6\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.290\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.234\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.177\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.125\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.70\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.9\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/ocfs2/quota_global.c\", \"fs/ocfs2/quota_local.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/58f9e20e2a7602e1dd649a1ec4790077c251cb6c\"}, {\"url\": \"https://git.kernel.org/stable/c/8ff6f635a08c30559ded0c110c7ce03ba7747d11\"}, {\"url\": \"https://git.kernel.org/stable/c/f44e6d70c100614c211703f065cad448050e4a0e\"}, {\"url\": \"https://git.kernel.org/stable/c/2d431192486367eee03cc28d0b53b97dafcb8e63\"}, {\"url\": \"https://git.kernel.org/stable/c/2e3d203b1adede46bbba049e497765d67865be18\"}, {\"url\": \"https://git.kernel.org/stable/c/ba950a02d8d23811aa1120affd3adedcfac6153d\"}, {\"url\": \"https://git.kernel.org/stable/c/5f3fd772d152229d94602bca243fbb658068a597\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nocfs2: fix slab-use-after-free due to dangling pointer dqi_priv\\n\\nWhen mounting ocfs2 and then remounting it as read-only, a\\nslab-use-after-free occurs after the user uses a syscall to\\nquota_getnextquota.  Specifically, sb_dqinfo(sb, type)-\u003edqi_priv is the\\ndangling pointer.\\n\\nDuring the remounting process, the pointer dqi_priv is freed but is never\\nset as null leaving it to be accessed.  Additionally, the read-only option\\nfor remounting sets the DQUOT_SUSPENDED flag instead of setting the\\nDQUOT_USAGE_ENABLED flags.  Moreover, later in the process of getting the\\nnext quota, the function ocfs2_get_next_id is called and only checks the\\nquota usage flags and not the quota suspended flags.\\n\\nTo fix this, I set dqi_priv to null when it is freed after remounting with\\nread-only and put a check for DQUOT_SUSPENDED in ocfs2_get_next_id.\\n\\n[akpm@linux-foundation.org: coding-style cleanups]\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-02-02T10:15:26.230Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-57892\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-13T14:04:27.066Z\", \"dateReserved\": \"2025-01-11T14:45:42.028Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-01-15T13:05:44.635Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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