{"id":"CVE-2026-80897","title":"netfs: release readahead folios on iterator preparation failure","summary":"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…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= e0186fa7436e55db10cecc2308749e2a877269a5 < 9ef7c3c5cf771286f187aed199dac0972404cc0f","Linux >= 06fa229ceb36898e68022b5654c017d2c6582d7d < 2c148a31ca01fc160aceec777bbc0041b0d0b8bd","Linux >= 06fa229ceb36898e68022b5654c017d2c6582d7d < 935e7b74bb2368f215cf8c2ad4bff60ee4e7589e","Linux >= 06fa229ceb36898e68022b5654c017d2c6582d7d < 87eb3d272dcbcbbfe5c1576c10e5dc72810cf1f6","Linux 6.14"],"published":"2026-09-04","updated":"2026-10-21","sourceUpdated":"2026-10-21T12:47:12.430Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80897","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"}],"tags":["cve.org"],"epss":0.00206,"epssPercentile":0.10076,"ingestedAt":"2026-10-21T12:48:53.748Z","slug":"CVE-2026-80897","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= e0186fa7436e55db10cecc2308749e2a877269a5 < 9ef7c3c5cf771286f187aed199dac0972404cc0f`\n- `Linux >= 06fa229ceb36898e68022b5654c017d2c6582d7d < 2c148a31ca01fc160aceec777bbc0041b0d0b8bd`\n- `Linux >= 06fa229ceb36898e68022b5654c017d2c6582d7d < 935e7b74bb2368f215cf8c2ad4bff60ee4e7589e`\n- `Linux >= 06fa229ceb36898e68022b5654c017d2c6582d7d < 87eb3d272dcbcbbfe5c1576c10e5dc72810cf1f6`\n- `Linux 6.14`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}