CVE-2026-93272 remoteproc: qcom_wcnss: Fix handling the lack of PD regulators in v3
A memory corruption vulnerability in the Linux kernel's Qualcomm WCNSS driver allows local attackers to cause denial of service or potentially execute code via out-of-bounds access.
- 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-2026-93272?
CVE-2026-93272 is a memory corruption vulnerability in Linux, published on 24 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:
remoteproc: qcom_wcnss: Fix handling the lack of PD regulators in v3
The changes introduced to handle single power domain platforms have swapped the info pointer increment from num_pd_vregs to num_pds, which would shift the info pointer past the end of the array for pronto-v3, which does not list power domain regulators in vregs.
This showed up as a difference between GCC- and LLVM-compiled kernels on SDM632 devices, where only with LLVM one would get the "regulator request with no identifier" error, because the out-of-bounds memory ended up being zeroed. Fix by skipping the increment when there are more power domains than regulators.
Which versions are affected by CVE-2026-93272?
How do I fix CVE-2026-93272?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-93272 being exploited?
There is no known exploitation of CVE-2026-93272 in the wild and no public exploit code.
Sources
Also known as AZL-103598, BELL-CVE-2026-93272, DEBIAN-CVE-2026-93272, GHSA-4gpg-4875-c7gx, UBUNTU-CVE-2026-93272.