CVE-2026-80897 is a vulnerability in Linux Kernel
Published on September 4, 2026
netfs: release readahead folios on iterator preparation failure
In the Linux kernel, the following vulnerability has been resolved:
netfs: release readahead folios on iterator preparation failure
netfs_prepare_read_iterator() batches readahead folios in put_batch so that
the folio references can be dropped after the I/O iterator has been
prepared.
If rolling_buffer_load_from_ra() fails after earlier folios have been
batched, the function returns immediately and leaves those references held.
Release the batch before returning the error.
Products Associated with CVE-2026-80897
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Affected Versions
Linux:- Version 06fa229ceb36898e68022b5654c017d2c6582d7d and below 2c148a31ca01fc160aceec777bbc0041b0d0b8bd is affected.
- Version 06fa229ceb36898e68022b5654c017d2c6582d7d and below 935e7b74bb2368f215cf8c2ad4bff60ee4e7589e is affected.
- Version 06fa229ceb36898e68022b5654c017d2c6582d7d and below 87eb3d272dcbcbbfe5c1576c10e5dc72810cf1f6 is affected.
- Version 6.14 is affected.
- Before 6.14 is unaffected.
- Version 6.18.44, <= 6.18.* is unaffected.
- Version 7.1.8, <= 7.1.* is unaffected.
- Version 7.2, <= * is unaffected.