{"id":"CVE-2026-80897","state":"PUBLISHED","title":"netfs: release readahead folios on iterator preparation failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: release readahead folios on iterator preparation failure\n\nnetfs_prepare_read_iterator() batches readahead folios in put_batch so that\nthe folio references can be dropped after the I/O iterator has been\nprepared.\n\nIf rolling_buffer_load_from_ra() fails after earlier folios have been\nbatched, the function returns immediately and leaves those references held.\nRelease the batch before returning the error.","publishedAt":"2026-09-04T17:11:12.499Z","updatedAt":"2026-10-21T12:47:12.430Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e0186fa7436e55db10cecc2308749e2a877269a5","status":"affected","lessThan":"9ef7c3c5cf771286f187aed199dac0972404cc0f","versionType":"git"},{"version":"06fa229ceb36898e68022b5654c017d2c6582d7d","status":"affected","lessThan":"2c148a31ca01fc160aceec777bbc0041b0d0b8bd","versionType":"git"},{"version":"06fa229ceb36898e68022b5654c017d2c6582d7d","status":"affected","lessThan":"935e7b74bb2368f215cf8c2ad4bff60ee4e7589e","versionType":"git"},{"version":"06fa229ceb36898e68022b5654c017d2c6582d7d","status":"affected","lessThan":"87eb3d272dcbcbbfe5c1576c10e5dc72810cf1f6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/netfs/buffered_read.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.14","versionType":"semver"},{"version":"6.18.44","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.8","status":"unaffected","lessThanOrEqual":"7.1.*","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/netfs/buffered_read.c"]}],"references":["https://git.kernel.org/stable/c/9ef7c3c5cf771286f187aed199dac0972404cc0f","https://git.kernel.org/stable/c/2c148a31ca01fc160aceec777bbc0041b0d0b8bd","https://git.kernel.org/stable/c/935e7b74bb2368f215cf8c2ad4bff60ee4e7589e","https://git.kernel.org/stable/c/87eb3d272dcbcbbfe5c1576c10e5dc72810cf1f6"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80897.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80897","state":"PUBLISHED","datePublished":"2026-09-04T17:11:12.499Z","dateUpdated":"2026-10-21T12:47:12.430Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.800Z"},"containers":{"cna":{"title":"netfs: release readahead folios on iterator preparation failure","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: release readahead folios on iterator preparation failure\n\nnetfs_prepare_read_iterator() batches readahead folios in put_batch so that\nthe folio references can be dropped after the I/O iterator has been\nprepared.\n\nIf rolling_buffer_load_from_ra() fails after earlier folios have been\nbatched, the function returns immediately and leaves those references held.\nRelease the batch before returning the error."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e0186fa7436e55db10cecc2308749e2a877269a5","status":"affected","lessThan":"9ef7c3c5cf771286f187aed199dac0972404cc0f","versionType":"git"},{"version":"06fa229ceb36898e68022b5654c017d2c6582d7d","status":"affected","lessThan":"2c148a31ca01fc160aceec777bbc0041b0d0b8bd","versionType":"git"},{"version":"06fa229ceb36898e68022b5654c017d2c6582d7d","status":"affected","lessThan":"935e7b74bb2368f215cf8c2ad4bff60ee4e7589e","versionType":"git"},{"version":"06fa229ceb36898e68022b5654c017d2c6582d7d","status":"affected","lessThan":"87eb3d272dcbcbbfe5c1576c10e5dc72810cf1f6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/netfs/buffered_read.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.14","versionType":"semver"},{"version":"6.18.44","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.8","status":"unaffected","lessThanOrEqual":"7.1.*","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/netfs/buffered_read.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/9ef7c3c5cf771286f187aed199dac0972404cc0f"},{"url":"https://git.kernel.org/stable/c/2c148a31ca01fc160aceec777bbc0041b0d0b8bd"},{"url":"https://git.kernel.org/stable/c/935e7b74bb2368f215cf8c2ad4bff60ee4e7589e"},{"url":"https://git.kernel.org/stable/c/87eb3d272dcbcbbfe5c1576c10e5dc72810cf1f6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:47:12.430Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"6.18.44"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"7.1.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}