CVE-2026-99221

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    CVE-2026-99221

    Published: 2 Nov 2026Last Modified: 5 Nov 2026

    Summary: keys/trusted_keys: return immediately after TPM unseal failure

    Details: In the Linux kernel, the following vulnerability has been resolved: keys/trusted_keys: return immediately after TPM unseal failure trusted_tpm_unseal() proceeds to pcrlock() when the TPM unseal operation fails. If pcrlock() succeeds, its return value overwrites the unseal error, causing key instantiation to succeed. Return immediately when unseal fails to preserve the original error.

    References: https://git.kernel.org/stable/c/234d09bb3b3d84851d4b3246272addc30f3353eb, https://git.kernel.org/stable/c/2d92a0f87c338a08367aff05edd1ade86da4ac8d, https://git.kernel.org/stable/c/4876f09ce222e140a73aad950882b3605440c935, https://git.kernel.org/stable/c/63b19ec2863b2cb5279b746ecd3d6210b1a93945, https://git.kernel.org/stable/c/6e359d8cb8580b9874801dea930086effd4d9c62, https://git.kernel.org/stable/c/e55d48f21f591a9fe80d26b5fbd1912ea725d9e6, https://git.kernel.org/stable/c/ed697a5f667435bbb1cedbe5bd9f300de645047d, https://git.kernel.org/stable/c/f92d0ccb05bf9089072cb067dda0dffd5394c4ef, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99221.json, https://nvd.nist.gov/vuln/detail/CVE-2026-99221, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 5d0682be318910e028bdf57c90a1695ffc34be37
    Fixed -4876f09ce222e140a73aad950882b3605440c935

    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-2026-99221 | CVE-DB