CVE-2025-23158 media: venus: hfi: add check to handle incorrect queue size
A missing bounds check in the Linux kernel Venus media driver allows an out-of-bounds write, potentially enabling code execution or privilege escalation.
- 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-2025-23158?
CVE-2025-23158 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 1 May 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:
media: venus: hfi: add check to handle incorrect queue size
qsize represents size of shared queued between driver and video firmware. Firmware can modify this value to an invalid large value. In such situation, empty_space will be bigger than the space actually available. Since new_wr_idx is not checked, so the following code will result in an OOB write. ... qsize = qhdr->q_size
if (wr_idx >= rd_idx) empty_space = qsize - (wr_idx - rd_idx) .... if (new_wr_idx < qsize) { memcpy(wr_ptr, packet, dwords << 2) --> OOB write
Add check to ensure qsize is within the allocated size while reading and writing packets into the queue.
Weakness: CWE-787
Which versions are affected by CVE-2025-23158?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-23158?
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-2025-23158 being exploited?
There is no known exploitation of CVE-2025-23158 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2025-23158, DEBIAN-CVE-2025-23158, GHSA-f6mg-77cc-c9pm, ROOT-OS-DEBIAN-12-CVE-2025-23158, ROOT-OS-UBUNTU-2204-CVE-2025-23158, ROOT-OS-UBUNTU-2404-CVE-2025-23158 and 1 more.