CVE-2026-80898

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    CVE-2026-80898

    Published: 4 Sept 2026Last Modified: 6 Sept 2026

    Summary: netfs: clear PG_private_2 on copy-to-cache append failure

    Details: In the Linux kernel, the following vulnerability has been resolved: netfs: clear PG_private_2 on copy-to-cache append failure netfs_pgpriv2_copy_to_cache() marks the folio with PG_private_2 before netfs_pgpriv2_copy_folio() appends it to the copy-to-cache rolling buffer. If the append fails, the folio is not queued for cache writeback, so the PG_private_2 state and its reference must be released immediately.

    References: https://git.kernel.org/stable/c/614b7f4bfcf665a751ae89ff9ae336a1b2d5af4e, https://git.kernel.org/stable/c/627826ef4208042b0470d1a3fdb729ce35471a0d, https://git.kernel.org/stable/c/a81fc9266e1c5fef9ccf675a9b44b2f4ab464923, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80898.json, https://nvd.nist.gov/vuln/detail/CVE-2026-80898, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- e2d46f2ec332533816417b60933954173f602121
    Fixed -627826ef4208042b0470d1a3fdb729ce35471a0d

    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-2026-80898 | CVE-DB