CVE-2026-99257

    Dashboard / Vulnerabilities / CVE-2026-99257

    CVE-2026-99257

    Published: 3 Nov 2026Last Modified: 5 Nov 2026

    Summary: gpio: shared: gracefully handle no-device lookup of shared GPIOs

    Details: In the Linux kernel, the following vulnerability has been resolved: gpio: shared: gracefully handle no-device lookup of shared GPIOs We use platform lookup tables for shared GPIOs. This mechanism needs a struct device to work so fwnode-based lookup with no device associated currently causes a NULL-pointer deference. Adding this functionality will require a larger rework and it has never worked anyway so add a check that allows the kernel to gracefully handle this situation with an error ahead of implementing that functionality as a new feature.

    References: https://git.kernel.org/stable/c/7f9eb6aaf9a3ab7fa2b7dcc38660c27db12d4ec1, https://git.kernel.org/stable/c/cf73c3fc03c43a8a86fd487c62390b4744eff9ec, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99257.json, https://nvd.nist.gov/vuln/detail/CVE-2026-99257, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- a060b8c511abb0997381b397e52149a5e3e5259a
    Fixed -7f9eb6aaf9a3ab7fa2b7dcc38660c27db12d4ec1

    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-2026-99257 | CVE-DB