cve-2024-50152
Vulnerability from cvelistv5
Published
2024-11-07 09:31
Modified
2024-12-19 09:34
Severity ?
EPSS score ?
0.02% (0.04276)
Summary
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix possible double free in smb2_set_ea() Clang static checker(scan-build) warning： fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory. 1304 | kfree(ea); | ^~~~~~~~~ There is a double free in such case: 'ea is initialized to NULL' -> 'first successful memory allocation for ea' -> 'something failed, goto sea_exit' -> 'first memory release for ea' -> 'goto replay_again' -> 'second goto sea_exit before allocate memory for ea' -> 'second memory release for ea resulted in double free'. Re-initialie 'ea' to NULL near to the replay_again label, it can fix this double free problem.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/19ebc1e6cab334a8193398d4152deb76019b5d34Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b1813c220b76f60b1727984794377c4aa849d4c1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c9f758ecf2562dfdd4adf12c22921b5de8366123Patch
Impacted products
Vendor Product Version
Linux Linux Version: 433042a91f9373241307725b52de573933ffedbf
Version: 4f1fffa2376922f3d1d506e49c0fd445b023a28e
Version: 4f1fffa2376922f3d1d506e49c0fd445b023a28e
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   Linux Linux Version: 6.8
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{
   containers: {
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "fs/smb/client/smb2ops.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "b1813c220b76f60b1727984794377c4aa849d4c1",
                     status: "affected",
                     version: "433042a91f9373241307725b52de573933ffedbf",
                     versionType: "git",
                  },
                  {
                     lessThan: "c9f758ecf2562dfdd4adf12c22921b5de8366123",
                     status: "affected",
                     version: "4f1fffa2376922f3d1d506e49c0fd445b023a28e",
                     versionType: "git",
                  },
                  {
                     lessThan: "19ebc1e6cab334a8193398d4152deb76019b5d34",
                     status: "affected",
                     version: "4f1fffa2376922f3d1d506e49c0fd445b023a28e",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "fs/smb/client/smb2ops.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "6.8",
                  },
                  {
                     lessThan: "6.8",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.6.*",
                     status: "unaffected",
                     version: "6.6.59",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.11.*",
                     status: "unaffected",
                     version: "6.11.6",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.12",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix possible double free in smb2_set_ea()\n\nClang static checker(scan-build) warning：\nfs/smb/client/smb2ops.c:1304:2: Attempt to free released memory.\n 1304 |         kfree(ea);\n      |         ^~~~~~~~~\n\nThere is a double free in such case:\n'ea is initialized to NULL' -> 'first successful memory allocation for\nea' -> 'something failed, goto sea_exit' -> 'first memory release for ea'\n-> 'goto replay_again' -> 'second goto sea_exit before allocate memory\nfor ea' -> 'second memory release for ea resulted in double free'.\n\nRe-initialie 'ea' to NULL near to the replay_again label, it can fix this\ndouble free problem.",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T09:34:14.052Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/b1813c220b76f60b1727984794377c4aa849d4c1",
            },
            {
               url: "https://git.kernel.org/stable/c/c9f758ecf2562dfdd4adf12c22921b5de8366123",
            },
            {
               url: "https://git.kernel.org/stable/c/19ebc1e6cab334a8193398d4152deb76019b5d34",
            },
         ],
         title: "smb: client: fix possible double free in smb2_set_ea()",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-50152",
      datePublished: "2024-11-07T09:31:28.733Z",
      dateReserved: "2024-10-21T19:36:19.959Z",
      dateUpdated: "2024-12-19T09:34:14.052Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-50152\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-07T10:15:06.850\",\"lastModified\":\"2024-11-19T02:16:17.787\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsmb: client: fix possible double free in smb2_set_ea()\\n\\nClang static checker(scan-build) warning：\\nfs/smb/client/smb2ops.c:1304:2: Attempt to free released memory.\\n 1304 |         kfree(ea);\\n      |         ^~~~~~~~~\\n\\nThere is a double free in such case:\\n'ea is initialized to NULL' -> 'first successful memory allocation for\\nea' -> 'something failed, goto sea_exit' -> 'first memory release for ea'\\n-> 'goto replay_again' -> 'second goto sea_exit before allocate memory\\nfor ea' -> 'second memory release for ea resulted in double free'.\\n\\nRe-initialie 'ea' to NULL near to the replay_again label, it can fix this\\ndouble free problem.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: se corrige una posible doble liberación en smb2_set_ea() Advertencia del comprobador estático de Clang (scan-build): fs/smb/client/smb2ops.c:1304:2: Intento de liberar memoria liberada. 1304 | kfree(ea); | ^~~~~~~~~ Hay una doble liberación en tal caso: 'ea se inicializa a NULL' -> 'primera asignación de memoria exitosa para ea' -> 'algo falló, goto sea_exit' -> 'primera liberación de memoria para ea' -> 'goto replay_again' -> 'segundo goto sea_exit antes de asignar memoria para ea' -> 'la segunda liberación de memoria para ea resultó en una doble liberación'. Reinicialice 'ea' a NULL cerca de la etiqueta replay_again, puede solucionar este problema de doble liberación.\"}],\"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:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-415\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6.32\",\"versionEndExcluding\":\"6.6.59\",\"matchCriteriaId\":\"15752D93-7E64-45C3-AA2D-6A544F5E615F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.8\",\"versionEndExcluding\":\"6.11.6\",\"matchCriteriaId\":\"2CAA29A6-36B4-4C90-A862-A816F65153DB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/19ebc1e6cab334a8193398d4152deb76019b5d34\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b1813c220b76f60b1727984794377c4aa849d4c1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c9f758ecf2562dfdd4adf12c22921b5de8366123\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
   },
}


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