cve/published/2025/CVE-2025-37952.json

{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: Fix UAF in __close_file_table_ids\n\nA use-after-free is possible if one thread destroys the file\nvia __ksmbd_close_fd while another thread holds a reference to\nit. The existing checks on fp->refcount are not sufficient to\nprevent this.\n\nThe fix takes ft->lock around the section which removes the\nfile from the file table. This prevents two threads acquiring the\nsame file pointer via __close_file_table_ids, as well as the other\nfunctions which retrieve a file from the IDR and which already use\nthis same lock."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/smb/server/vfs_cache.c"
               ],
               "versions": [
                  {
                     "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                     "lessThan": "fec1f9e9a650e8e7011330a085c77e7bf2a08ea9",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                     "lessThan": "9e9841e232b51171ddf3bc4ee517d5d28dc8cad6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                     "lessThan": "16727e442568a46d9cca69fe2595896de86e120d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                     "lessThan": "36991c1ccde2d5a521577c448ffe07fcccfe104d",
                     "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/smb/server/vfs_cache.c"
               ],
               "versions": [
                  {
                     "version": "5.15",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.15",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.6.91",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.12.29",
                     "lessThanOrEqual": "6.12.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.14.7",
                     "lessThanOrEqual": "6.14.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.15",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "cpeApplicability": [
            {
               "nodes": [
                  {
                     "operator": "OR",
                     "negate": false,
                     "cpeMatch": [
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.15",
                           "versionEndExcluding": "6.6.91"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.15",
                           "versionEndExcluding": "6.12.29"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.15",
                           "versionEndExcluding": "6.14.7"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.15",
                           "versionEndExcluding": "6.15"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/fec1f9e9a650e8e7011330a085c77e7bf2a08ea9"
            },
            {
               "url": "https://git.kernel.org/stable/c/9e9841e232b51171ddf3bc4ee517d5d28dc8cad6"
            },
            {
               "url": "https://git.kernel.org/stable/c/16727e442568a46d9cca69fe2595896de86e120d"
            },
            {
               "url": "https://git.kernel.org/stable/c/36991c1ccde2d5a521577c448ffe07fcccfe104d"
            }
         ],
         "title": "ksmbd: Fix UAF in __close_file_table_ids",
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            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2025-37952",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}