CVE-2026-43081 net: ipa: fix GENERIC_CMD register field masks for IPA v5.0+
Incorrect register field masks in the Linux kernel IPA driver can cause a kernel warning and potential instability when stopping the MPSS remoteproc.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-43081?
CVE-2026-43081 is a medium-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:
net: ipa: fix GENERIC_CMD register field masks for IPA v5.0+
Fix the field masks to match the hardware layout documented in downstream GSI (GSI_V3_0_EE_n_GSI_EE_GENERIC_CMD_*).
Notably this fixes a WARN I was seeing when I tried to send "stop" to the MPSS remoteproc while IPA was up.
Which versions are affected by CVE-2026-43081?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-43081?
Apply the vendor's patch.
Is CVE-2026-43081 being exploited?
There is no known exploitation of CVE-2026-43081 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-43081, DEBIAN-CVE-2026-43081, GHSA-hp6x-xhc2-mhhc, ROOT-OS-UBUNTU-2404-CVE-2026-43081, UBUNTU-CVE-2026-43081.