CVE-2026-43176 wifi: rtw89: pci: validate release report content before using for RTL8922DE
A missing validation in the rtw89 WiFi driver allows a malformed release report to cause a kernel crash, leading to 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-2026-43176?
CVE-2026-43176 is a high-severity vulnerability in Linux kernel, published on 6 May 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: rtw89: pci: validate release report content before using for RTL8922DE
The commit 957eda596c76 ("wifi: rtw89: pci: validate sequence number of TX release report") does validation on existing chips, which somehow a release report of SKB becomes malformed. As no clear cause found, add rules ahead for RTL8922DE to avoid crash if it happens.
Weakness: CWE-20
Which versions are affected by CVE-2026-43176?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-43176?
Apply the vendor's patch.
Is CVE-2026-43176 being exploited?
There is no known exploitation of CVE-2026-43176 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-43176, DEBIAN-CVE-2026-43176, GHSA-g589-97cx-27m9, ROOT-OS-DEBIAN-11-CVE-2026-43176, ROOT-OS-DEBIAN-12-CVE-2026-43176, ROOT-OS-DEBIAN-13-CVE-2026-43176 and 3 more.