{"api_version":"1","generated_at":"2026-06-03T21:13:27+00:00","cve":"CVE-2025-68251","urls":{"html":"https://cve.report/CVE-2025-68251","api":"https://cve.report/api/cve/CVE-2025-68251.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-68251","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-68251"},"summary":{"title":"erofs: avoid infinite loops due to corrupted subpage compact indexes","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: avoid infinite loops due to corrupted subpage compact indexes\n\nRobert reported an infinite loop observed by two crafted images.\n\nThe root cause is that `clusterofs` can be larger than `lclustersize`\nfor !NONHEAD `lclusters` in corrupted subpage compact indexes, e.g.:\n\n  blocksize = lclustersize = 512   lcn = 6   clusterofs = 515\n\nMove the corresponding check for full compress indexes to\n`z_erofs_load_lcluster_from_disk()` to also cover subpage compact\ncompress indexes.\n\nIt also fixes the position of `m->type >= Z_EROFS_LCLUSTER_TYPE_MAX`\ncheck, since it should be placed right after\n`z_erofs_load_{compact,full}_lcluster()`.","state":"PUBLISHED","assigner":"Linux","published_at":"2025-12-16 15:15:54","updated_at":"2026-04-15 00:35:42"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/dbfac1b85d0753996ddfef636934d431b588dd1f","name":"https://git.kernel.org/stable/c/dbfac1b85d0753996ddfef636934d431b588dd1f","refsource":"https://git.kernel.org/stable/c/dbfac1b85d0753996ddfef636934d431b588dd1f","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8675447a8794983f2b7e694b378112772c17635e","name":"https://git.kernel.org/stable/c/8675447a8794983f2b7e694b378112772c17635e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e13d315ae077bb7c3c6027cc292401bc0f4ec683","name":"https://git.kernel.org/stable/c/e13d315ae077bb7c3c6027cc292401bc0f4ec683","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-68251","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68251","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8d2517aaeea3ab8651bb517bca8f3c8664d318ea dbfac1b85d0753996ddfef636934d431b588dd1f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8d2517aaeea3ab8651bb517bca8f3c8664d318ea 8675447a8794983f2b7e694b378112772c17635e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8d2517aaeea3ab8651bb517bca8f3c8664d318ea e13d315ae077bb7c3c6027cc292401bc0f4ec683 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3f691aa676f29586e83e6c032713554a290418c3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 22438a34d383ec2789eaf450728e38abc53051f8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.8","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.8 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.91 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17.6 6.17.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2025","cve_id":"68251","cve":"CVE-2025-68251","epss":"0.000240000","percentile":"0.071420000","score_date":"2026-05-28","updated_at":"2026-05-29 00:13:16"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/erofs/zmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"dbfac1b85d0753996ddfef636934d431b588dd1f","status":"affected","version":"8d2517aaeea3ab8651bb517bca8f3c8664d318ea","versionType":"git"},{"lessThan":"8675447a8794983f2b7e694b378112772c17635e","status":"affected","version":"8d2517aaeea3ab8651bb517bca8f3c8664d318ea","versionType":"git"},{"lessThan":"e13d315ae077bb7c3c6027cc292401bc0f4ec683","status":"affected","version":"8d2517aaeea3ab8651bb517bca8f3c8664d318ea","versionType":"git"},{"status":"affected","version":"3f691aa676f29586e83e6c032713554a290418c3","versionType":"git"},{"status":"affected","version":"22438a34d383ec2789eaf450728e38abc53051f8","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/erofs/zmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.8"},{"lessThan":"6.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.17.*","status":"unaffected","version":"6.17.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.18","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.91","versionStartIncluding":"6.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.17.6","versionStartIncluding":"6.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18","versionStartIncluding":"6.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: avoid infinite loops due to corrupted subpage compact indexes\n\nRobert reported an infinite loop observed by two crafted images.\n\nThe root cause is that `clusterofs` can be larger than `lclustersize`\nfor !NONHEAD `lclusters` in corrupted subpage compact indexes, e.g.:\n\n  blocksize = lclustersize = 512   lcn = 6   clusterofs = 515\n\nMove the corresponding check for full compress indexes to\n`z_erofs_load_lcluster_from_disk()` to also cover subpage compact\ncompress indexes.\n\nIt also fixes the position of `m->type >= Z_EROFS_LCLUSTER_TYPE_MAX`\ncheck, since it should be placed right after\n`z_erofs_load_{compact,full}_lcluster()`."}],"providerMetadata":{"dateUpdated":"2026-05-23T11:25:50.558Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/dbfac1b85d0753996ddfef636934d431b588dd1f"},{"url":"https://git.kernel.org/stable/c/8675447a8794983f2b7e694b378112772c17635e"},{"url":"https://git.kernel.org/stable/c/e13d315ae077bb7c3c6027cc292401bc0f4ec683"}],"title":"erofs: avoid infinite loops due to corrupted subpage compact indexes","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-68251","datePublished":"2025-12-16T14:32:17.979Z","dateReserved":"2025-12-16T13:41:40.266Z","dateUpdated":"2026-05-23T11:25:50.558Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-12-16 15:15:54","lastModifiedDate":"2026-04-15 00:35:42","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"68251","Ordinal":"1","Title":"erofs: avoid infinite loops due to corrupted subpage compact ind","CVE":"CVE-2025-68251","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"68251","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: avoid infinite loops due to corrupted subpage compact indexes\n\nRobert reported an infinite loop observed by two crafted images.\n\nThe root cause is that `clusterofs` can be larger than `lclustersize`\nfor !NONHEAD `lclusters` in corrupted subpage compact indexes, e.g.:\n\n  blocksize = lclustersize = 512   lcn = 6   clusterofs = 515\n\nMove the corresponding check for full compress indexes to\n`z_erofs_load_lcluster_from_disk()` to also cover subpage compact\ncompress indexes.\n\nIt also fixes the position of `m->type >= Z_EROFS_LCLUSTER_TYPE_MAX`\ncheck, since it should be placed right after\n`z_erofs_load_{compact,full}_lcluster()`.","Type":"Description","Title":"erofs: avoid infinite loops due to corrupted subpage compact ind"}]}}}