CVE-2025-68303 platform/x86: intel: punit_ipc: fix memory corruption
A memory corruption vulnerability in the Intel Punit IPC driver allows attackers to corrupt memory, potentially leading to code execution or system crashes.
- 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-2025-68303?
CVE-2025-68303 is a high-severity memory corruption vulnerability in Linux, published on 16 Dec 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:
platform/x86: intel: punit_ipc: fix memory corruption
This passes the address of the pointer "&punit_ipcdev" when the intent was to pass the pointer itself "punit_ipcdev" (without the ampersand). This means that the:
complete(&ipcdev->cmd_complete);
in intel_punit_ioc() will write to a wrong memory address corrupting it.
Which versions are affected by CVE-2025-68303?
How do I fix CVE-2025-68303?
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-2025-68303 being exploited?
There is no known exploitation of CVE-2025-68303 in the wild and no public exploit code.
Sources
Also known as AZL-72634, BELL-CVE-2025-68303, DEBIAN-CVE-2025-68303, GHSA-jxwj-6v7h-hf97, ROOT-OS-DEBIAN-11-CVE-2025-68303, ROOT-OS-DEBIAN-12-CVE-2025-68303 and 4 more.