{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup\n\nFix Oops in dasd_alias_get_start_dev() function caused by the pavgroup\npointer being NULL.\n\nThe pavgroup pointer is checked on the entrance of the function but\nwithout the lcu->lock being held. Therefore there is a race window\nbetween dasd_alias_get_start_dev() and _lcu_update() which sets\npavgroup to NULL with the lcu->lock held.\n\nFix by checking the pavgroup pointer with lcu->lock held."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/s390/block/dasd_alias.c"
               ],
               "versions": [
                  {
                     "version": "8e09f21574ea",
                     "lessThan": "d86b4267834e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8e09f21574ea",
                     "lessThan": "49f401a98b31",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8e09f21574ea",
                     "lessThan": "aaba5ff27420",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8e09f21574ea",
                     "lessThan": "2e473351400e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8e09f21574ea",
                     "lessThan": "f5fcc9d6d71d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8e09f21574ea",
                     "lessThan": "d3a67c21b18f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8e09f21574ea",
                     "lessThan": "650a2e79d176",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8e09f21574ea",
                     "lessThan": "db7ba07108a4",
                     "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/s390/block/dasd_alias.c"
               ],
               "versions": [
                  {
                     "version": "2.6.25",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "2.6.25",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.9.330",
                     "lessThanOrEqual": "4.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.14.295",
                     "lessThanOrEqual": "4.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.260",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.215",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.146",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.71",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.19.12",
                     "lessThanOrEqual": "5.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.0",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/d86b4267834e6d4af62e3073e48166e349ab1b70"
            },
            {
               "url": "https://git.kernel.org/stable/c/49f401a98b318761ca2e15d4c7869a20043fbed4"
            },
            {
               "url": "https://git.kernel.org/stable/c/aaba5ff2742043705bc4c02fd0b2b246e2e16da1"
            },
            {
               "url": "https://git.kernel.org/stable/c/2e473351400e3dd66f0b71eddcef82ee45a584c1"
            },
            {
               "url": "https://git.kernel.org/stable/c/f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b"
            },
            {
               "url": "https://git.kernel.org/stable/c/d3a67c21b18f33c79382084af556557c442f12a6"
            },
            {
               "url": "https://git.kernel.org/stable/c/650a2e79d176db753654d3dde88e53a2033036ac"
            },
            {
               "url": "https://git.kernel.org/stable/c/db7ba07108a48c0f95b74fabbfd5d63e924f992d"
            }
         ],
         "title": "s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2022-48636",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}