CVE-2026-93155 crypto: keembay - Fix AEAD unregister count in error path
A bug in the Linux kernel's Keembay crypto driver causes incorrect cleanup during error handling, potentially leading to system instability or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-93155?
CVE-2026-93155 is a vulnerability in Linux, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
crypto: keembay - Fix AEAD unregister count in error path
register_aes_algs() registers the AEAD algorithms before registering the skcipher algorithms. If skcipher registration fails, the function unwinds the earlier AEAD registration with crypto_engine_unregister_aeads(), but it passes ARRAY_SIZE(algs), which is the skcipher table size.
Use ARRAY_SIZE(algs_aead) for the AEAD unwind path so the unregister helper iterates over the same table that was registered. Also clarify the nearby comment: the crypto registration helpers clean up algorithms registered within the same call, while this function must still unwind earlier successful registration steps.
Which versions are affected by CVE-2026-93155?
How do I fix CVE-2026-93155?
Apply the vendor's patch.
Is CVE-2026-93155 being exploited?
There is no known exploitation of CVE-2026-93155 in the wild and no public exploit code.
Sources
Also known as AZL-102314, BELL-CVE-2026-93155, DEBIAN-CVE-2026-93155, GHSA-h6fj-2f26-g348, UBUNTU-CVE-2026-93155.