CVE-2026-64176

A flaw was found in the Linux kernel's iwlwifi driver, affecting older Intel wireless devices. This vulnerability arises from incorrect handling of transmit (TX) rates, specifically when the driver attempts to set these rates. An attacker could potentially trigger a firmware assert or crash, leading to a denial of service (DoS) for the affected wireless functionality.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

To prevent the iwlwifi kernel module from loading, which disables Intel wireless functionality, create a blacklist rule.

1. Create the file /etc/modprobe.d/blacklist-iwlwifi.conf with the following content:

   blacklist iwlwifi
   install iwlwifi /bin/true
   

2. Regenerate the initramfs to apply the changes:

   dracut -f -v
   

   For systems using mkinitrd:

   mkinitrd -f -v /boot/initramfs-$(uname -r).img $(uname -r)
   

3. A system reboot is required for this change to take effect.