CVE-2026-93062 wifi: iwlwifi: guard against division by zero in iwl_dbg_tlv_alloc_fragments
A division by zero error in the iwlwifi driver can cause a kernel crash, leading to denial of service for systems using Intel Wi-Fi hardware.
- 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-2026-93062?
CVE-2026-93062 is a denial of service 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: guard against division by zero in iwl_dbg_tlv_alloc_fragments
Make sure we don't end-up with a num_frags = 0 situation. For that, check that the required size is not 0 and put a checker on num_frags as well.
Which versions are affected by CVE-2026-93062?
How do I fix CVE-2026-93062?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-93062 being exploited?
There is no known exploitation of CVE-2026-93062 in the wild and no public exploit code.
Sources
Also known as AZL-103031, BELL-CVE-2026-93062, DEBIAN-CVE-2026-93062, GHSA-x74j-6wvr-gpx3, UBUNTU-CVE-2026-93062.