cve/published/2022/CVE-2022-49285.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\niio: accel: mma8452: use the correct logic to get mma8452_data\n\nThe original logic to get mma8452_data is wrong, the *dev point to\nthe device belong to iio_dev. we can't use this dev to find the\ncorrect i2c_client. The original logic happen to work because it\nfinally use dev->driver_data to get iio_dev. Here use the API\nto_i2c_client() is wrong and make reader confuse. To correct the\nlogic, it should be like this\n\n  struct mma8452_data *data = iio_priv(dev_get_drvdata(dev));\n\nBut after commit 8b7651f25962 (\"iio: iio_device_alloc(): Remove\nunnecessary self drvdata\"), the upper logic also can't work.\nWhen try to show the avialable scale in userspace, will meet kernel\ndump, kernel handle NULL pointer dereference.\n\nSo use dev_to_iio_dev() to correct the logic.\n\nDual fixes tags as the second reflects when the bug was exposed, whilst\nthe first reflects when the original bug was introduced."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/iio/accel/mma8452.c"
               ],
               "versions": [
                  {
                     "version": "c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527",
                     "lessThan": "4c0bb583a4444cce224e8661090cbffc98e2fe07",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527",
                     "lessThan": "d2d9ebdbff79d87d27652578e6d1638ad3b5f3bf",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c3cdd6e48e35b7a02f28e301ef30a87ff3cd6527",
                     "lessThan": "c87b7b12f48db86ac9909894f4dc0107d7df6375",
                     "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/iio/accel/mma8452.c"
               ],
               "versions": [
                  {
                     "version": "4.4",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "4.4",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.15.54",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.17.2",
                     "lessThanOrEqual": "5.17.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.18",
                     "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": "4.4",
                           "versionEndExcluding": "5.15.54"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "4.4",
                           "versionEndExcluding": "5.17.2"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "4.4",
                           "versionEndExcluding": "5.18"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/4c0bb583a4444cce224e8661090cbffc98e2fe07"
            },
            {
               "url": "https://git.kernel.org/stable/c/d2d9ebdbff79d87d27652578e6d1638ad3b5f3bf"
            },
            {
               "url": "https://git.kernel.org/stable/c/c87b7b12f48db86ac9909894f4dc0107d7df6375"
            }
         ],
         "title": "iio: accel: mma8452: use the correct logic to get mma8452_data",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2022-49285",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}