CVE-2023-54057 iommu/amd: Add a length limitation for the ivrs_acpihid command-line parameter
A buffer overflow in the Linux kernel's AMD IOMMU driver allows local attackers to cause a crash or potentially execute code via the ivrs_acpihid parameter.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-54057?
CVE-2023-54057 is a memory corruption vulnerability in Linux, published on 24 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:
iommu/amd: Add a length limitation for the ivrs_acpihid command-line parameter
The 'acpiid' buffer in the parse_ivrs_acpihid function may overflow, because the string specifier in the format string sscanf() has no width limitation.
Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.
Which versions are affected by CVE-2023-54057?
How do I fix CVE-2023-54057?
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-2023-54057 being exploited?
There is no known exploitation of CVE-2023-54057 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-54057, DEBIAN-CVE-2023-54057, GHSA-25gw-vwhh-r379, UBUNTU-CVE-2023-54057.