CVE-2026-93161
Published Sep 17, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: qat - clear AES key schedule from stack qat_alg_xts_reverse_key() expands the forward XTS AES key on the stack. That schedule contains key material and can remain in the stack frame. Clear the temporary crypto_aes_ctx with memzero_explicit() after the copy.
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References
Other References
https://git.kernel.org/stable/c/892f34dc1819cceb8841005a68086710ce3763b6
https://git.kernel.org/stable/c/92e4979e1a770860b26aa3d90cce0c4c6a53833c
https://git.kernel.org/stable/c/9af019e213ada5c3d0d33c515071a1414b6899f3
https://git.kernel.org/stable/c/b9cf42622b30178f554fa74411eec67e02d70411
https://git.kernel.org/stable/c/d41a9fcfb7f9ee36e4a4aaf5e7996bca6be1e7a9
https://git.kernel.org/stable/c/dcaa0f1e86cbcb01f68131ae907b54cf299a3592
https://git.kernel.org/stable/c/fb1194b78a163cc56bb9480c707fc34b53522359
Frequently Asked Questions
What is CVE-2026-93161? +
In the Linux kernel, the following vulnerability has been resolved:
crypto: qat - clear AES key schedule from stack
qat_alg_xts_reverse_key() expands the forward XTS AES key on the stack.
That schedule contains key material and can remain in the stack frame.
Clear the temporary crypto_aes_ctx with memzero_explicit() after the copy.
How do I check if I'm vulnerable to CVE-2026-93161? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.