cve/published/2024/CVE-2024-35880.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\nio_uring/kbuf: hold io_buffer_list reference over mmap\n\nIf we look up the kbuf, ensure that it doesn't get unregistered until\nafter we're done with it. Since we're inside mmap, we cannot safely use\nthe io_uring lock. Rely on the fact that we can lookup the buffer list\nunder RCU now and grab a reference to it, preventing it from being\nunregistered until we're done with it. The lookup returns the\nio_buffer_list directly with it referenced."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "io_uring/io_uring.c",
                  "io_uring/kbuf.c",
                  "io_uring/kbuf.h"
               ],
               "versions": [
                  {
                     "version": "09f7520048eaaee9709091cd2787966f807da7c5",
                     "lessThan": "65938e81df2197203bda4b9a0c477e7987218d66",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "5cf4f52e6d8aa2d3b7728f568abbf9d42a3af252",
                     "lessThan": "5fd8e2359498043e0b5329a05f02d10a9eb91eb9",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "5cf4f52e6d8aa2d3b7728f568abbf9d42a3af252",
                     "lessThan": "561e4f9451d65fc2f7eef564e0064373e3019793",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "io_uring/io_uring.c",
                  "io_uring/kbuf.c",
                  "io_uring/kbuf.h"
               ],
               "versions": [
                  {
                     "version": "6.7",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.7",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.6.26",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.8.5",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.9",
                     "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": "6.6.5",
                           "versionEndExcluding": "6.6.26"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.7",
                           "versionEndExcluding": "6.8.5"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.7",
                           "versionEndExcluding": "6.9"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/65938e81df2197203bda4b9a0c477e7987218d66"
            },
            {
               "url": "https://git.kernel.org/stable/c/5fd8e2359498043e0b5329a05f02d10a9eb91eb9"
            },
            {
               "url": "https://git.kernel.org/stable/c/561e4f9451d65fc2f7eef564e0064373e3019793"
            }
         ],
         "title": "io_uring/kbuf: hold io_buffer_list reference over mmap",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-35880",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}