{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix null-ptr-deref when journal load failed.\n\nDuring the mounting process, if journal_reset() fails because of too short\njournal, then lead to jbd2_journal_load() fails with NULL j_sb_buffer. \nSubsequently, ocfs2_journal_shutdown() calls\njbd2_journal_flush()->jbd2_cleanup_journal_tail()->\n__jbd2_update_log_tail()->jbd2_journal_update_sb_log_tail()\n->lock_buffer(journal->j_sb_buffer), resulting in a null-pointer\ndereference error.\n\nTo resolve this issue, we should check the JBD2_LOADED flag to ensure the\njournal was properly loaded.  Additionally, use journal instead of\nosb->journal directly to simplify the code."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/ocfs2/journal.c"
               ],
               "versions": [
                  {
                     "version": "f6f50e28f0cb",
                     "lessThan": "bf605ae98dab",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f6f50e28f0cb",
                     "lessThan": "ff55291fb367",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f6f50e28f0cb",
                     "lessThan": "82dfdd1e31e7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f6f50e28f0cb",
                     "lessThan": "86a89e75e9e4",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f6f50e28f0cb",
                     "lessThan": "f60e94a83db7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f6f50e28f0cb",
                     "lessThan": "387bf565cc03",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "f6f50e28f0cb",
                     "lessThan": "5784d9fcfd43",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/ocfs2/journal.c"
               ],
               "versions": [
                  {
                     "version": "2.6.32",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "2.6.32",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.227",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.168",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.113",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.55",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10.14",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11.3",
                     "lessThanOrEqual": "6.11.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.12-rc1",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/bf605ae98dab5c15c5b631d4d7f88898cb41b649"
            },
            {
               "url": "https://git.kernel.org/stable/c/ff55291fb36779819211b596da703389135f5b05"
            },
            {
               "url": "https://git.kernel.org/stable/c/82dfdd1e31e774578f76ce6dc90c834f96403a0f"
            },
            {
               "url": "https://git.kernel.org/stable/c/86a89e75e9e4dfa768b97db466ad6bedf2e7ea5b"
            },
            {
               "url": "https://git.kernel.org/stable/c/f60e94a83db799bde625ac8671a5b4a6354e7120"
            },
            {
               "url": "https://git.kernel.org/stable/c/387bf565cc03e2e8c720b8b4798efea4aacb6962"
            },
            {
               "url": "https://git.kernel.org/stable/c/5784d9fcfd43bd853654bb80c87ef293b9e8e80a"
            }
         ],
         "title": "ocfs2: fix null-ptr-deref when journal load failed.",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-49957",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}