What’s Vulnerable › Vulnerabilities

CVE-2026-98221: KEYS: trusted: Fix tpm2_load_cmd() boundary check

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-06 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: Fix tpm2_load_cmd() boundary check tpm2_load_cmd() does boundary checks against the ASN.1 size i.e., payload->blob_len. Address this by passing the decoded blob size to tpm2_load_cmd(), and use it for the boundary checks.

Affected products

• Linux kernel: 5.13 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/114f00d738f15dd8c7318369edcdc53dd6d08763
• https://git.kernel.org/stable/c/134825dfc971fbf2b1d0f58f0b3bce8332ad0afb
• https://git.kernel.org/stable/c/3fd487c69ad3161e358c33c170bab0cf02a071b7
• https://git.kernel.org/stable/c/5afa57ea91481c6c49f194b0f5a5c4d96a4d7348
• https://git.kernel.org/stable/c/9ddbc5f4bb498aff8096a5231574858a4bffee4f
• https://git.kernel.org/stable/c/b020b447338872440142fe8a57350a483da86b7a
• https://git.kernel.org/stable/c/cc86227fea28aed86c1fb52a884560b4440da198

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