CVE-2026-93064 wifi: iwlwifi: mvm: fix off-by-one in TXF key sanitiser
An off-by-one error in the iwlwifi driver fails to sanitize the final byte of a TXF key, potentially leaking sensitive key material to nearby attackers.
- 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-2026-93064?
CVE-2026-93064 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:
wifi: iwlwifi: mvm: fix off-by-one in TXF key sanitiser
iwl_mvm_frob_txf_key_iter() tracks the last matched byte position in loop variable 'i'. When a full key match is found (match == keylen), 'i' points at the last byte of the matched key. The memset start offset should therefore be i + 1 - keylen, not i - keylen; the current code zeroes one byte before the match and leaves the final key byte un-sanitised.
Which versions are affected by CVE-2026-93064?
How do I fix CVE-2026-93064?
Apply the vendor's patch.
Is CVE-2026-93064 being exploited?
There is no known exploitation of CVE-2026-93064 in the wild and no public exploit code.
Sources
Also known as AZL-102128, BELL-CVE-2026-93064, DEBIAN-CVE-2026-93064, GHSA-hjvf-78mr-j897, UBUNTU-CVE-2026-93064.