CVE-2023-53845 (GCVE-0-2023-53845)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:30 – Updated: 2026-05-11 19:52
VLAI
Title
nilfs2: fix infinite loop in nilfs_mdt_get_block()
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: bdb265eae08db578e7cf5739be16f389d495fc75 , < cfb0bb4fbd40c1f06da7e9f88c0a2d46155b90c2 (git)
Affected: bdb265eae08db578e7cf5739be16f389d495fc75 , < d536f9976bb04e9c84cf80045a9355975e418f41 (git)
Affected: bdb265eae08db578e7cf5739be16f389d495fc75 , < fe1cbbcb1a2532ee1654e1ff121be8906d83c6f0 (git)
Affected: bdb265eae08db578e7cf5739be16f389d495fc75 , < 8a89d36a07afe1ed4564df51fefa2bb556c85412 (git)
Affected: bdb265eae08db578e7cf5739be16f389d495fc75 , < 8d07d9119642ba43d21f8ba64d51d01931096b20 (git)
Affected: bdb265eae08db578e7cf5739be16f389d495fc75 , < 25457d07c8146e57d28906c663def033dc425af6 (git)
Affected: bdb265eae08db578e7cf5739be16f389d495fc75 , < 34c5f17222b50c79848bb03ec8811648813e6a45 (git)
Affected: bdb265eae08db578e7cf5739be16f389d495fc75 , < 5b29661669cb65b9750a3cf70ed3eaf947b92167 (git)
Affected: bdb265eae08db578e7cf5739be16f389d495fc75 , < a6a491c048882e7e424d407d32cba0b52d9ef2bf (git)
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Linux Linux Affected: 2.6.30
Unaffected: 0 , < 2.6.30 (semver)
Unaffected: 4.14.315 , ≤ 4.14.* (semver)
Unaffected: 4.19.283 , ≤ 4.19.* (semver)
Unaffected: 5.4.243 , ≤ 5.4.* (semver)
Unaffected: 5.10.180 , ≤ 5.10.* (semver)
Unaffected: 5.15.111 , ≤ 5.15.* (semver)
Unaffected: 6.1.28 , ≤ 6.1.* (semver)
Unaffected: 6.2.15 , ≤ 6.2.* (semver)
Unaffected: 6.3.2 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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        "vulnStatus": "Deferred"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T22:38:40+00:00",
      "cve": "CVE-2023-53845",
      "id": "CVE-2023-53845",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nilfs2: fix infinite loop in nilfs_mdt_get_block()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53845.json",
      "version": "3"
    }
  }
}



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