{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npipe: wakeup wr_wait after setting max_usage\n\nCommit c73be61cede5 (\"pipe: Add general notification queue support\") a\nregression was introduced that would lock up resized pipes under certain\nconditions. See the reproducer in [1].\n\nThe commit resizing the pipe ring size was moved to a different\nfunction, doing that moved the wakeup for pipe->wr_wait before actually\nraising pipe->max_usage. If a pipe was full before the resize occured it\nwould result in the wakeup never actually triggering pipe_write.\n\nSet @max_usage and @nr_accounted before waking writers if this isn't a\nwatch queue.\n\n[Christian Brauner <brauner@kernel.org>: rewrite to account for watch queues]"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/pipe.c"
               ],
               "versions": [
                  {
                     "version": "c73be61cede5",
                     "lessThan": "162ae0e78bda",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c73be61cede5",
                     "lessThan": "3efbd114b915",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c73be61cede5",
                     "lessThan": "b87a1229d866",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c73be61cede5",
                     "lessThan": "68e51bdb1194",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c73be61cede5",
                     "lessThan": "6fb70694f8d1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c73be61cede5",
                     "lessThan": "e95aada4cb93",
                     "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/pipe.c"
               ],
               "versions": [
                  {
                     "version": "5.8",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.8",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.210",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.149",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.76",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.15",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.3",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8"
            },
            {
               "url": "https://git.kernel.org/stable/c/3efbd114b91525bb095b8ae046382197d92126b9"
            },
            {
               "url": "https://git.kernel.org/stable/c/b87a1229d8668fbc78ebd9ca0fc797a76001c60f"
            },
            {
               "url": "https://git.kernel.org/stable/c/68e51bdb1194f11d3452525b99c98aff6f837b24"
            },
            {
               "url": "https://git.kernel.org/stable/c/6fb70694f8d1ac34e45246b0ac988f025e1e5b55"
            },
            {
               "url": "https://git.kernel.org/stable/c/e95aada4cb93d42e25c30a0ef9eb2923d9711d4a"
            }
         ],
         "title": "pipe: wakeup wr_wait after setting max_usage",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52672",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}