CVE-2021-47087

    Dashboard / Vulnerabilities / CVE-2021-47087

    CVE-2021-47087

    Published: 4 Mar 2024Last Modified: 15 Mar 2026

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: tee: optee: Fix incorrect page free bug Pointer to the allocated pages (struct page *page) has already progressed towards the end of allocation. It is incorrect to perform __free_pages(page, order) using this pointer as we would free any arbitrary pages. Fix this by stop modifying the page pointer.

    References: https://git.kernel.org/stable/c/91e94e42f6fc49635f1a16d8ae3f79552bcfda29, https://git.kernel.org/stable/c/ad338d825e3f7b96ee542bf313728af2d19fe9ad, https://git.kernel.org/stable/c/18549bf4b21c739a9def39f27dcac53e27286ab5, https://git.kernel.org/stable/c/806142c805cacd098e61bdc0f72c778a2389fe4a

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    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-2021-47087 | CVE-DB