{"id":"CVE-2026-98879","state":"PUBLISHED","title":"isofs: handle set_blocksize failures","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nisofs: handle set_blocksize failures\n\nisofs uses buffer_heads, which don't handle block size > PAGE_SIZE well.\nWithout this, mounting we will hit the\n\n        BUG_ON(offset >= folio_size(folio));\n\nin folio_set_bh on the first __bread_gfp call.","publishedAt":"2026-10-23T11:37:28.048Z","updatedAt":"2026-10-26T06:56:02.033Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"6db7f0ba365786304558db6a3d52013ae176e03e","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"61f277bf35f533b602984f0e55900111fe52f31a","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"cebde6d88e34396c29f2f001d90e921677cc17d6","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"28d1f6aa14f5924e36602b7a31c9141d34de0b9c","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"9c97e3b1152d3092581745189f5d2f04c6404ef9","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"9584ab6283721e5aab485c79bd06c2f78d89e55c","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/isofs/inode.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/isofs/inode.c"]}],"references":["https://git.kernel.org/stable/c/6db7f0ba365786304558db6a3d52013ae176e03e","https://git.kernel.org/stable/c/61f277bf35f533b602984f0e55900111fe52f31a","https://git.kernel.org/stable/c/cebde6d88e34396c29f2f001d90e921677cc17d6","https://git.kernel.org/stable/c/28d1f6aa14f5924e36602b7a31c9141d34de0b9c","https://git.kernel.org/stable/c/9c97e3b1152d3092581745189f5d2f04c6404ef9","https://git.kernel.org/stable/c/9584ab6283721e5aab485c79bd06c2f78d89e55c","https://git.kernel.org/stable/c/25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98879.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98879","state":"PUBLISHED","datePublished":"2026-10-23T11:37:28.048Z","dateUpdated":"2026-10-26T06:56:02.033Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.377Z"},"containers":{"cna":{"title":"isofs: handle set_blocksize failures","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nisofs: handle set_blocksize failures\n\nisofs uses buffer_heads, which don't handle block size > PAGE_SIZE well.\nWithout this, mounting we will hit the\n\n        BUG_ON(offset >= folio_size(folio));\n\nin folio_set_bh on the first __bread_gfp call."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"6db7f0ba365786304558db6a3d52013ae176e03e","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"61f277bf35f533b602984f0e55900111fe52f31a","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"cebde6d88e34396c29f2f001d90e921677cc17d6","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"28d1f6aa14f5924e36602b7a31c9141d34de0b9c","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"9c97e3b1152d3092581745189f5d2f04c6404ef9","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"9584ab6283721e5aab485c79bd06c2f78d89e55c","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/isofs/inode.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/isofs/inode.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/6db7f0ba365786304558db6a3d52013ae176e03e"},{"url":"https://git.kernel.org/stable/c/61f277bf35f533b602984f0e55900111fe52f31a"},{"url":"https://git.kernel.org/stable/c/cebde6d88e34396c29f2f001d90e921677cc17d6"},{"url":"https://git.kernel.org/stable/c/28d1f6aa14f5924e36602b7a31c9141d34de0b9c"},{"url":"https://git.kernel.org/stable/c/9c97e3b1152d3092581745189f5d2f04c6404ef9"},{"url":"https://git.kernel.org/stable/c/9584ab6283721e5aab485c79bd06c2f78d89e55c"},{"url":"https://git.kernel.org/stable/c/25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-26T06:56:02.033Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}