{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: stop waiting for space when jbd2_cleanup_journal_tail() returns error\n\nIn __jbd2_log_wait_for_space(), we might call jbd2_cleanup_journal_tail()\nto recover some journal space. But if an error occurs while executing\njbd2_cleanup_journal_tail() (e.g., an EIO), we don't stop waiting for free\nspace right away, we try other branches, and if j_committing_transaction\nis NULL (i.e., the tid is 0), we will get the following complain:\n\n============================================\nJBD2: I/O error when updating journal superblock for sdd-8.\n__jbd2_log_wait_for_space: needed 256 blocks and only had 217 space available\n__jbd2_log_wait_for_space: no way to get more journal space in sdd-8\n------------[ cut here ]------------\nWARNING: CPU: 2 PID: 139804 at fs/jbd2/checkpoint.c:109 __jbd2_log_wait_for_space+0x251/0x2e0\nModules linked in:\nCPU: 2 PID: 139804 Comm: kworker/u8:3 Not tainted 6.6.0+ #1\nRIP: 0010:__jbd2_log_wait_for_space+0x251/0x2e0\nCall Trace:\n <TASK>\n add_transaction_credits+0x5d1/0x5e0\n start_this_handle+0x1ef/0x6a0\n jbd2__journal_start+0x18b/0x340\n ext4_dirty_inode+0x5d/0xb0\n __mark_inode_dirty+0xe4/0x5d0\n generic_update_time+0x60/0x70\n[...]\n============================================\n\nSo only if jbd2_cleanup_journal_tail() returns 1, i.e., there is nothing to\nclean up at the moment, continue to try to reclaim free space in other ways.\n\nNote that this fix relies on commit 6f6a6fda2945 (\"jbd2: fix ocfs2 corrupt\nwhen updating journal superblock fails\") to make jbd2_cleanup_journal_tail\nreturn the correct error code."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/jbd2/checkpoint.c"
               ],
               "versions": [
                  {
                     "version": "8c3f25d8950c",
                     "lessThan": "481e8f18a290",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8c3f25d8950c",
                     "lessThan": "ec7f8337c98a",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8c3f25d8950c",
                     "lessThan": "70bae48377a2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8c3f25d8950c",
                     "lessThan": "1c62dc0d82c6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8c3f25d8950c",
                     "lessThan": "3ced0fe6c0ef",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8c3f25d8950c",
                     "lessThan": "c6bf043b210e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8c3f25d8950c",
                     "lessThan": "f5cacdc6f2bb",
                     "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/jbd2/checkpoint.c"
               ],
               "versions": [
                  {
                     "version": "2.6.28",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "2.6.28",
                     "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/481e8f18a290e39e04ddb7feb2bb2a2cc3b213ed"
            },
            {
               "url": "https://git.kernel.org/stable/c/ec7f8337c98ad281020ad1f11ba492462d80737a"
            },
            {
               "url": "https://git.kernel.org/stable/c/70bae48377a2c4296fd3caf4caf8f11079111019"
            },
            {
               "url": "https://git.kernel.org/stable/c/1c62dc0d82c62f0dc8fcdc4843208e522acccaf5"
            },
            {
               "url": "https://git.kernel.org/stable/c/3ced0fe6c0eff032733ea8b38778b34707270138"
            },
            {
               "url": "https://git.kernel.org/stable/c/c6bf043b210eac67d35a114e345c4e5585672913"
            },
            {
               "url": "https://git.kernel.org/stable/c/f5cacdc6f2bb2a9bf214469dd7112b43dd2dd68a"
            }
         ],
         "title": "jbd2: stop waiting for space when jbd2_cleanup_journal_tail() returns error",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-49959",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}