Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tpm2-sessions: Fix out of range indexing in name_size 'name_size' does not have any range checks, and it just directly indexes with TPM_ALG_ID, which could lead into memory corruption at worst. Address the issue by only processing known values and returning -EINVAL for unrecognized values. Make also 'tpm_buf_append_name' and 'tpm_buf_fill_hmac_session' fallible so that errors are detected before causing any spurious TPM traffic. End also the authorization session on failure in both of the functions, as the session state would be then by definition corrupted.
References
- https://git.kernel.org/stable/c/04a3aa6e8c5f878cc51a8a1c90b6d3c54079bc43
- https://git.kernel.org/stable/c/47e676ce4d68f461dfcab906f6aeb254f7276deb
- https://git.kernel.org/stable/c/6e9722e9a7bfe1bbad649937c811076acf86e1fd
FAQ
What is CVE-2025-68792?
CVE-2025-68792 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: tpm2-sessions: Fix out of range indexing in name_size 'name_size' does not have any range checks, and it just directly indexes wit...
How severe is CVE-2025-68792?
CVSS scoring is not yet available for CVE-2025-68792. Check NVD for updates.
Is there a patch for CVE-2025-68792?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.