CVE-2025-71300 Revert "arm64: zynqmp: Add an OP-TEE node to the device tree"
A device tree configuration error in the Linux kernel for ZynqMP platforms causes memory access violations and system crashes during runtime.
- 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-2025-71300?
CVE-2025-71300 is a high-severity memory corruption vulnerability in Linux kernel, published on 8 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:
Revert "arm64: zynqmp: Add an OP-TEE node to the device tree"
This reverts commit 06d22ed6b6635b17551f386b50bb5aaff9b75fbe.
OP-TEE logic in U-Boot automatically injects a reserved-memory node along with optee firmware node to kernel device tree. The injection logic is dependent on that there is no manually defined optee node. Having the node in zynqmp.dtsi effectively breaks OP-TEE's insertion of the reserved-memory node, causing memory access violations during runtime.
Which versions are affected by CVE-2025-71300?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-71300?
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-2025-71300 being exploited?
There is no known exploitation of CVE-2025-71300 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-71300, DEBIAN-CVE-2025-71300, GHSA-f29c-vwqv-27x7, ROOT-OS-UBUNTU-2204-CVE-2025-71300, ROOT-OS-UBUNTU-2404-CVE-2025-71300, UBUNTU-CVE-2025-71300.