{"id":"CVE-2026-64157","state":"PUBLISHED","title":"netfs: Fix partial invalidation of streaming-write folio","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix partial invalidation of streaming-write folio\n\nIn netfs_invalidate_folio(), if the region of a partial invalidation\noverlaps the front (but not all) of a dirty write cached in a streaming\nwrite page (dirty, but not uptodate, with the dirty region tracked by a\nnetfs_folio struct), the function modifies the dirty region - but\nincorrectly as it moves the region forward by setting the start to the\nstart, not the end, of the invalidation region.\n\nFix this by setting finfo->dirty_offset to the end of the invalidation\nregion (iend).","publishedAt":"2026-07-19T15:40:44.964Z","updatedAt":"2026-07-19T15:40:44.964Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"cce6bfa6ca0e30af9927b0074c97fe6a92f28092","status":"affected","lessThan":"f6b2569ae29b666fd15ff2848684c445ba442a39","versionType":"git"},{"version":"cce6bfa6ca0e30af9927b0074c97fe6a92f28092","status":"affected","lessThan":"3d9601c029b934b5b6a10f99791467b10eb6b211","versionType":"git"},{"version":"cce6bfa6ca0e30af9927b0074c97fe6a92f28092","status":"affected","lessThan":"6a3d27116be2c5fb9a03d5cf37c486ac517f3689","versionType":"git"},{"version":"cce6bfa6ca0e30af9927b0074c97fe6a92f28092","status":"affected","lessThan":"6d91acc7fb85d33ea58fca9b964a32a453937f4b","versionType":"git"},{"version":"e2814004138a541110d4b2dc254a8f619c2c4ce0","status":"affected","versionType":"git"},{"version":"6.10.8","status":"affected","lessThan":"6.11","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/netfs/misc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.92","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.34","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.11","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/netfs/misc.c"]}],"references":["https://git.kernel.org/stable/c/f6b2569ae29b666fd15ff2848684c445ba442a39","https://git.kernel.org/stable/c/3d9601c029b934b5b6a10f99791467b10eb6b211","https://git.kernel.org/stable/c/6a3d27116be2c5fb9a03d5cf37c486ac517f3689","https://git.kernel.org/stable/c/6d91acc7fb85d33ea58fca9b964a32a453937f4b"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/64xxx/CVE-2026-64157.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64157","state":"PUBLISHED","datePublished":"2026-07-19T15:40:44.964Z","dateUpdated":"2026-07-19T15:40:44.964Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-19T07:54:57.038Z"},"containers":{"cna":{"title":"netfs: Fix partial invalidation of streaming-write folio","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix partial invalidation of streaming-write folio\n\nIn netfs_invalidate_folio(), if the region of a partial invalidation\noverlaps the front (but not all) of a dirty write cached in a streaming\nwrite page (dirty, but not uptodate, with the dirty region tracked by a\nnetfs_folio struct), the function modifies the dirty region - but\nincorrectly as it moves the region forward by setting the start to the\nstart, not the end, of the invalidation region.\n\nFix this by setting finfo->dirty_offset to the end of the invalidation\nregion (iend)."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"cce6bfa6ca0e30af9927b0074c97fe6a92f28092","status":"affected","lessThan":"f6b2569ae29b666fd15ff2848684c445ba442a39","versionType":"git"},{"version":"cce6bfa6ca0e30af9927b0074c97fe6a92f28092","status":"affected","lessThan":"3d9601c029b934b5b6a10f99791467b10eb6b211","versionType":"git"},{"version":"cce6bfa6ca0e30af9927b0074c97fe6a92f28092","status":"affected","lessThan":"6a3d27116be2c5fb9a03d5cf37c486ac517f3689","versionType":"git"},{"version":"cce6bfa6ca0e30af9927b0074c97fe6a92f28092","status":"affected","lessThan":"6d91acc7fb85d33ea58fca9b964a32a453937f4b","versionType":"git"},{"version":"e2814004138a541110d4b2dc254a8f619c2c4ce0","status":"affected","versionType":"git"},{"version":"6.10.8","status":"affected","lessThan":"6.11","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/netfs/misc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.92","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.34","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.11","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/netfs/misc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f6b2569ae29b666fd15ff2848684c445ba442a39"},{"url":"https://git.kernel.org/stable/c/3d9601c029b934b5b6a10f99791467b10eb6b211"},{"url":"https://git.kernel.org/stable/c/6a3d27116be2c5fb9a03d5cf37c486ac517f3689"},{"url":"https://git.kernel.org/stable/c/6d91acc7fb85d33ea58fca9b964a32a453937f4b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-07-19T15:40:44.964Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.18.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"7.0.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"7.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10.8"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}