CVE-2026-80897

    Dashboard / Vulnerabilities / CVE-2026-80897

    CVE-2026-80897

    Published: 4 Sept 2026Last Modified: 6 Sept 2026

    Summary: netfs: release readahead folios on iterator preparation failure

    Details: 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.

    References: https://git.kernel.org/stable/c/2c148a31ca01fc160aceec777bbc0041b0d0b8bd, https://git.kernel.org/stable/c/87eb3d272dcbcbbfe5c1576c10e5dc72810cf1f6, https://git.kernel.org/stable/c/935e7b74bb2368f215cf8c2ad4bff60ee4e7589e, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80897.json, https://nvd.nist.gov/vuln/detail/CVE-2026-80897, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 06fa229ceb36898e68022b5654c017d2c6582d7d
    Fixed -2c148a31ca01fc160aceec777bbc0041b0d0b8bd

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-80897 | CVE-DB