{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53845","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-12-09T01:27:17.827Z","datePublished":"2025-12-09T01:30:08.016Z","dateUpdated":"2026-05-11T19:52:37.795Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:52:37.795Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nilfs2/bmap.c"],"versions":[{"version":"bdb265eae08db578e7cf5739be16f389d495fc75","lessThan":"cfb0bb4fbd40c1f06da7e9f88c0a2d46155b90c2","status":"affected","versionType":"git"},{"version":"bdb265eae08db578e7cf5739be16f389d495fc75","lessThan":"d536f9976bb04e9c84cf80045a9355975e418f41","status":"affected","versionType":"git"},{"version":"bdb265eae08db578e7cf5739be16f389d495fc75","lessThan":"fe1cbbcb1a2532ee1654e1ff121be8906d83c6f0","status":"affected","versionType":"git"},{"version":"bdb265eae08db578e7cf5739be16f389d495fc75","lessThan":"8a89d36a07afe1ed4564df51fefa2bb556c85412","status":"affected","versionType":"git"},{"version":"bdb265eae08db578e7cf5739be16f389d495fc75","lessThan":"8d07d9119642ba43d21f8ba64d51d01931096b20","status":"affected","versionType":"git"},{"version":"bdb265eae08db578e7cf5739be16f389d495fc75","lessThan":"25457d07c8146e57d28906c663def033dc425af6","status":"affected","versionType":"git"},{"version":"bdb265eae08db578e7cf5739be16f389d495fc75","lessThan":"34c5f17222b50c79848bb03ec8811648813e6a45","status":"affected","versionType":"git"},{"version":"bdb265eae08db578e7cf5739be16f389d495fc75","lessThan":"5b29661669cb65b9750a3cf70ed3eaf947b92167","status":"affected","versionType":"git"},{"version":"bdb265eae08db578e7cf5739be16f389d495fc75","lessThan":"a6a491c048882e7e424d407d32cba0b52d9ef2bf","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/nilfs2/bmap.c"],"versions":[{"version":"2.6.30","status":"affected"},{"version":"0","lessThan":"2.6.30","status":"unaffected","versionType":"semver"},{"version":"4.14.315","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.283","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.243","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.180","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.111","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.28","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.2.15","lessThanOrEqual":"6.2.*","status":"unaffected","versionType":"semver"},{"version":"6.3.2","lessThanOrEqual":"6.3.*","status":"unaffected","versionType":"semver"},{"version":"6.4","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"4.14.315"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"4.19.283"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.4.243"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.10.180"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.15.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.1.28"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.2.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.3.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.4"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/cfb0bb4fbd40c1f06da7e9f88c0a2d46155b90c2"},{"url":"https://git.kernel.org/stable/c/d536f9976bb04e9c84cf80045a9355975e418f41"},{"url":"https://git.kernel.org/stable/c/fe1cbbcb1a2532ee1654e1ff121be8906d83c6f0"},{"url":"https://git.kernel.org/stable/c/8a89d36a07afe1ed4564df51fefa2bb556c85412"},{"url":"https://git.kernel.org/stable/c/8d07d9119642ba43d21f8ba64d51d01931096b20"},{"url":"https://git.kernel.org/stable/c/25457d07c8146e57d28906c663def033dc425af6"},{"url":"https://git.kernel.org/stable/c/34c5f17222b50c79848bb03ec8811648813e6a45"},{"url":"https://git.kernel.org/stable/c/5b29661669cb65b9750a3cf70ed3eaf947b92167"},{"url":"https://git.kernel.org/stable/c/a6a491c048882e7e424d407d32cba0b52d9ef2bf"}],"title":"nilfs2: fix infinite loop in nilfs_mdt_get_block()","x_generator":{"engine":"bippy-1.2.0"}}}}