{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: mhi: host: Add alignment check for event ring read pointer\n\nThough we do check the event ring read pointer by \"is_valid_ring_ptr\"\nto make sure it is in the buffer range, but there is another risk the\npointer may be not aligned.  Since we are expecting event ring elements\nare 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer\ncould lead to multiple issues like DoS or ring buffer memory corruption.\n\nSo add a alignment check for event ring read pointer."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/bus/mhi/host/main.c"
               ],
               "versions": [
                  {
                     "version": "ec32332df764",
                     "lessThan": "94991728c84f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ec32332df764",
                     "lessThan": "2df39ac8f813",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ec32332df764",
                     "lessThan": "a9ebfc405fe1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ec32332df764",
                     "lessThan": "ecf832011182",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ec32332df764",
                     "lessThan": "eff9704f5332",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/bus/mhi/host/main.c"
               ],
               "versions": [
                  {
                     "version": "5.13",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.13",
                     "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/94991728c84f8df54fd9eec9b85855ef9057ea08"
            },
            {
               "url": "https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551"
            },
            {
               "url": "https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010"
            },
            {
               "url": "https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b"
            },
            {
               "url": "https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f"
            }
         ],
         "title": "bus: mhi: host: Add alignment check for event ring read pointer",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52494",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}