CVE-2025-40180 mailbox: zynqmp-ipi: Fix out-of-bounds access in mailbox cleanup loop
Out-of-bounds access in the ZynqMP IPI mailbox driver cleanup loop can lead to memory corruption and potential system crashes or code execution.
- 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-2025-40180?
CVE-2025-40180 is a memory corruption vulnerability in Linux, published on 12 Nov 2025. 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:
mailbox: zynqmp-ipi: Fix out-of-bounds access in mailbox cleanup loop
The cleanup loop was starting at the wrong array index, causing out-of-bounds access. Start the loop at the correct index for zero-indexed arrays to prevent accessing memory beyond the allocated array bounds.
Which versions are affected by CVE-2025-40180?
How do I fix CVE-2025-40180?
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-2025-40180 being exploited?
There is no known exploitation of CVE-2025-40180 in the wild and no public exploit code.
Sources
Also known as AZL-70064, BELL-CVE-2025-40180, DEBIAN-CVE-2025-40180, GHSA-78x4-5hh5-f94g, ROOT-OS-DEBIAN-11-CVE-2025-40180, ROOT-OS-DEBIAN-12-CVE-2025-40180 and 4 more.