cve/published/2021/CVE-2021-47471.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\ndrm: mxsfb: Fix NULL pointer dereference crash on unload\n\nThe mxsfb->crtc.funcs may already be NULL when unloading the driver,\nin which case calling mxsfb_irq_disable() via drm_irq_uninstall() from\nmxsfb_unload() leads to NULL pointer dereference.\n\nSince all we care about is masking the IRQ and mxsfb->base is still\nvalid, just use that to clear and mask the IRQ."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/gpu/drm/mxsfb/mxsfb_drv.c"
               ],
               "versions": [
                  {
                     "version": "ae1ed0093281939b80664a687689f12436c0e874",
                     "lessThan": "f40c2281d2c0674d32ba732fee45222d76495472",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ae1ed0093281939b80664a687689f12436c0e874",
                     "lessThan": "b0e6db0656ddfd8bb57303c2ef61ee1c1cc694a8",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ae1ed0093281939b80664a687689f12436c0e874",
                     "lessThan": "3cfc183052c3dbf8eae57b6c1685dab00ed3db4a",
                     "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/gpu/drm/mxsfb/mxsfb_drv.c"
               ],
               "versions": [
                  {
                     "version": "5.10",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.10",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.10.76",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.14.15",
                     "lessThanOrEqual": "5.14.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "5.15",
                     "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": "5.10",
                           "versionEndExcluding": "5.10.76"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.10",
                           "versionEndExcluding": "5.14.15"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.10",
                           "versionEndExcluding": "5.15"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/f40c2281d2c0674d32ba732fee45222d76495472"
            },
            {
               "url": "https://git.kernel.org/stable/c/b0e6db0656ddfd8bb57303c2ef61ee1c1cc694a8"
            },
            {
               "url": "https://git.kernel.org/stable/c/3cfc183052c3dbf8eae57b6c1685dab00ed3db4a"
            }
         ],
         "title": "drm: mxsfb: Fix NULL pointer dereference crash on unload",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47471",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}