CVE-2023-53804 (GCVE-0-2023-53804)

Vulnerability from cvelistv5 – Published: 2025-12-09 00:01 – Updated: 2025-12-09 00:01
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() During unmount process of nilfs2, nothing holds nilfs_root structure after nilfs2 detaches its writer in nilfs_detach_log_writer(). However, since nilfs_evict_inode() uses nilfs_root for some cleanup operations, it may cause use-after-free read if inodes are left in "garbage_list" and released by nilfs_dispose_list() at the end of nilfs_detach_log_writer(). Fix this issue by modifying nilfs_evict_inode() to only clear inode without additional metadata changes that use nilfs_root if the file system is degraded to read-only or the writer is detached.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f31e18131ee2ce80a4da5c808221d25b1ae9ad6d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2a782ea8ebd712a458466e3103e2881b4f886cb5 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 116d53f09ff52e6f98e3fe1f85d8898d6ba26c68 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6b4205ea97901f822004e6c8d59484ccfda03faa (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b8427b8522d9ede53015ba45a9978ba68d1162f5 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < acc2a40e428f12780004e1e9fce4722d88f909fd (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fb8e8d58f116d069e5939e1f786ac84e7fa4533e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9b5a04ac3ad9898c4745cba46ea26de74ba56a8e (git)
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    Linux Linux Unaffected: 4.14.316 , ≤ 4.14.* (semver)
Unaffected: 4.19.284 , ≤ 4.19.* (semver)
Unaffected: 5.4.244 , ≤ 5.4.* (semver)
Unaffected: 5.10.181 , ≤ 5.10.* (semver)
Unaffected: 5.15.113 , ≤ 5.15.* (semver)
Unaffected: 6.1.30 , ≤ 6.1.* (semver)
Unaffected: 6.3.4 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nilfs2/inode.c"
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          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
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            },
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              "status": "unaffected",
              "version": "4.19.284",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.244",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.181",
              "versionType": "semver"
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              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.113",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.30",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.4",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()\n\nDuring unmount process of nilfs2, nothing holds nilfs_root structure after\nnilfs2 detaches its writer in nilfs_detach_log_writer().  However, since\nnilfs_evict_inode() uses nilfs_root for some cleanup operations, it may\ncause use-after-free read if inodes are left in \"garbage_list\" and\nreleased by nilfs_dispose_list() at the end of nilfs_detach_log_writer().\n\nFix this issue by modifying nilfs_evict_inode() to only clear inode\nwithout additional metadata changes that use nilfs_root if the file system\nis degraded to read-only or the writer is detached."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-09T00:01:01.787Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f31e18131ee2ce80a4da5c808221d25b1ae9ad6d"
        },
        {
          "url": "https://git.kernel.org/stable/c/2a782ea8ebd712a458466e3103e2881b4f886cb5"
        },
        {
          "url": "https://git.kernel.org/stable/c/116d53f09ff52e6f98e3fe1f85d8898d6ba26c68"
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          "url": "https://git.kernel.org/stable/c/6b4205ea97901f822004e6c8d59484ccfda03faa"
        },
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          "url": "https://git.kernel.org/stable/c/b8427b8522d9ede53015ba45a9978ba68d1162f5"
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        },
        {
          "url": "https://git.kernel.org/stable/c/9b5a04ac3ad9898c4745cba46ea26de74ba56a8e"
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      "title": "nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53804",
    "datePublished": "2025-12-09T00:01:01.787Z",
    "dateReserved": "2025-12-08T23:58:35.276Z",
    "dateUpdated": "2025-12-09T00:01:01.787Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53804\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-09T01:16:52.270\",\"lastModified\":\"2025-12-09T18:37:13.640\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()\\n\\nDuring unmount process of nilfs2, nothing holds nilfs_root structure after\\nnilfs2 detaches its writer in nilfs_detach_log_writer().  However, since\\nnilfs_evict_inode() uses nilfs_root for some cleanup operations, it may\\ncause use-after-free read if inodes are left in \\\"garbage_list\\\" and\\nreleased by nilfs_dispose_list() at the end of nilfs_detach_log_writer().\\n\\nFix this issue by modifying nilfs_evict_inode() to only clear inode\\nwithout additional metadata changes that use nilfs_root if the file system\\nis degraded to read-only or the writer is detached.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/116d53f09ff52e6f98e3fe1f85d8898d6ba26c68\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2a782ea8ebd712a458466e3103e2881b4f886cb5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6b4205ea97901f822004e6c8d59484ccfda03faa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9b5a04ac3ad9898c4745cba46ea26de74ba56a8e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/acc2a40e428f12780004e1e9fce4722d88f909fd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b8427b8522d9ede53015ba45a9978ba68d1162f5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f31e18131ee2ce80a4da5c808221d25b1ae9ad6d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fb8e8d58f116d069e5939e1f786ac84e7fa4533e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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