CVE-2026-80804

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    CVE-2026-80804

    Published: 4 Sept 2026Last Modified: 15 Sept 2026

    Summary: xfs: restore nofs context unconditionally in xfs_trans_roll

    Details: In the Linux kernel, the following vulnerability has been resolved: xfs: restore nofs context unconditionally in xfs_trans_roll When __xfs_trans_commit() fails in xfs_trans_roll(), the NOFS context is cleared but only restored in the success path. This leaves the error path without nofs protection, causing a circular lock dependency between xfs_nondir_ilock_class and fs_reclaim: CPU0 CPU1 ---- ---- lock(&xfs_nondir_ilock_class); lock(fs_reclaim); lock(&xfs_nondir_ilock_class); lock(fs_reclaim); Fix this by moving xfs_trans_set_context() before the error check so that nofs context is always restored on the new transaction.

    References: https://git.kernel.org/stable/c/0241ea5fb0fe86d2a673163b2f5815111aadc7f7, https://git.kernel.org/stable/c/4d00a39c676274f4071b467e630565ac1e3ae0f2, https://git.kernel.org/stable/c/b09198cf90ccf296970b774beea1c1ddb260f94c, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80804.json, https://nvd.nist.gov/vuln/detail/CVE-2026-80804, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- a1ca658d649a4d8972e2e21ac2625b633217e327
    Fixed -b09198cf90ccf296970b774beea1c1ddb260f94c

    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-2026-80804 | CVE-DB