CVE-2023-54311 (GCVE-0-2023-54311)
Vulnerability from cvelistv5
Published
2025-12-30 12:23
Modified
2025-12-30 12:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: fix deadlock when converting an inline directory in nojournal mode In no journal mode, ext4_finish_convert_inline_dir() can self-deadlock by calling ext4_handle_dirty_dirblock() when it already has taken the directory lock. There is a similar self-deadlock in ext4_incvert_inline_data_nolock() for data files which we'll fix at the same time. A simple reproducer demonstrating the problem: mke2fs -Fq -t ext2 -O inline_data -b 4k /dev/vdc 64 mount -t ext4 -o dirsync /dev/vdc /vdc cd /vdc mkdir file0 cd file0 touch file0 touch file1 attr -s BurnSpaceInEA -V abcde . touch supercalifragilisticexpialidocious
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
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          "defaultStatus": "unaffected",
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          "programFiles": [
            "fs/ext4/inline.c"
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              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix deadlock when converting an inline directory in nojournal mode\n\nIn no journal mode, ext4_finish_convert_inline_dir() can self-deadlock\nby calling ext4_handle_dirty_dirblock() when it already has taken the\ndirectory lock.  There is a similar self-deadlock in\next4_incvert_inline_data_nolock() for data files which we\u0027ll fix at\nthe same time.\n\nA simple reproducer demonstrating the problem:\n\n    mke2fs -Fq -t ext2 -O inline_data -b 4k /dev/vdc 64\n    mount -t ext4 -o dirsync /dev/vdc /vdc\n    cd /vdc\n    mkdir file0\n    cd file0\n    touch file0\n    touch file1\n    attr -s BurnSpaceInEA -V abcde .\n    touch supercalifragilisticexpialidocious"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:23:43.174Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/b4fa4768c9acff77245d672d855d2c88294850b1"
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          "url": "https://git.kernel.org/stable/c/5f8b55136ad787aed2c184f7cb3e93772ae637a3"
        },
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        {
          "url": "https://git.kernel.org/stable/c/f4ce24f54d9cca4f09a395f3eecce20d6bec4663"
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      "title": "ext4: fix deadlock when converting an inline directory in nojournal mode",
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    "cveId": "CVE-2023-54311",
    "datePublished": "2025-12-30T12:23:43.174Z",
    "dateReserved": "2025-12-30T12:06:44.530Z",
    "dateUpdated": "2025-12-30T12:23:43.174Z",
    "state": "PUBLISHED"
  },
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  }
}


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