FKIE_CVE-2023-53845

Vulnerability from fkie_nvd - Published: 2025-12-09 16:17 - Updated: 2026-06-17 06:46
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix infinite loop in nilfs_mdt_get_block() If the disk image that nilfs2 mounts is corrupted and a virtual block address obtained by block lookup for a metadata file is invalid, nilfs_bmap_lookup_at_level() may return the same internal return code as -ENOENT, meaning the block does not exist in the metadata file. This duplication of return codes confuses nilfs_mdt_get_block(), causing it to read and create a metadata block indefinitely. In particular, if this happens to the inode metadata file, ifile, semaphore i_rwsem can be left held, causing task hangs in lock_mount. Fix this issue by making nilfs_bmap_lookup_at_level() treat virtual block address translation failures with -ENOENT as metadata corruption instead of returning the error code.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/25457d07c8146e57d28906c663def033dc425af6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34c5f17222b50c79848bb03ec8811648813e6a45
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5b29661669cb65b9750a3cf70ed3eaf947b92167
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a89d36a07afe1ed4564df51fefa2bb556c85412
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8d07d9119642ba43d21f8ba64d51d01931096b20
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a6a491c048882e7e424d407d32cba0b52d9ef2bf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cfb0bb4fbd40c1f06da7e9f88c0a2d46155b90c2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d536f9976bb04e9c84cf80045a9355975e418f41
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe1cbbcb1a2532ee1654e1ff121be8906d83c6f0
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nilfs2/bmap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "cfb0bb4fbd40c1f06da7e9f88c0a2d46155b90c2",
              "status": "affected",
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "versionType": "git"
            },
            {
              "lessThan": "d536f9976bb04e9c84cf80045a9355975e418f41",
              "status": "affected",
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "versionType": "git"
            },
            {
              "lessThan": "fe1cbbcb1a2532ee1654e1ff121be8906d83c6f0",
              "status": "affected",
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "versionType": "git"
            },
            {
              "lessThan": "8a89d36a07afe1ed4564df51fefa2bb556c85412",
              "status": "affected",
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "versionType": "git"
            },
            {
              "lessThan": "8d07d9119642ba43d21f8ba64d51d01931096b20",
              "status": "affected",
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "versionType": "git"
            },
            {
              "lessThan": "25457d07c8146e57d28906c663def033dc425af6",
              "status": "affected",
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "versionType": "git"
            },
            {
              "lessThan": "34c5f17222b50c79848bb03ec8811648813e6a45",
              "status": "affected",
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "versionType": "git"
            },
            {
              "lessThan": "5b29661669cb65b9750a3cf70ed3eaf947b92167",
              "status": "affected",
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "versionType": "git"
            },
            {
              "lessThan": "a6a491c048882e7e424d407d32cba0b52d9ef2bf",
              "status": "affected",
              "version": "bdb265eae08db578e7cf5739be16f389d495fc75",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/nilfs2/bmap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.30"
            },
            {
              "lessThan": "2.6.30",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.315",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.283",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.243",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.180",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.28",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.15",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.4",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix infinite loop in nilfs_mdt_get_block()\n\nIf the disk image that nilfs2 mounts is corrupted and a virtual block\naddress obtained by block lookup for a metadata file is invalid,\nnilfs_bmap_lookup_at_level() may return the same internal return code as\n-ENOENT, meaning the block does not exist in the metadata file.\n\nThis duplication of return codes confuses nilfs_mdt_get_block(), causing\nit to read and create a metadata block indefinitely.\n\nIn particular, if this happens to the inode metadata file, ifile,\nsemaphore i_rwsem can be left held, causing task hangs in lock_mount.\n\nFix this issue by making nilfs_bmap_lookup_at_level() treat virtual block\naddress translation failures with -ENOENT as metadata corruption instead\nof returning the error code."
    }
  ],
  "id": "CVE-2023-53845",
  "lastModified": "2026-06-17T06:46:10.363",
  "metrics": {},
  "published": "2025-12-09T16:17:24.860",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/25457d07c8146e57d28906c663def033dc425af6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/34c5f17222b50c79848bb03ec8811648813e6a45"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5b29661669cb65b9750a3cf70ed3eaf947b92167"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8a89d36a07afe1ed4564df51fefa2bb556c85412"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8d07d9119642ba43d21f8ba64d51d01931096b20"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a6a491c048882e7e424d407d32cba0b52d9ef2bf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cfb0bb4fbd40c1f06da7e9f88c0a2d46155b90c2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d536f9976bb04e9c84cf80045a9355975e418f41"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fe1cbbcb1a2532ee1654e1ff121be8906d83c6f0"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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