CVE-2026-43183 media: cx25821: Fix a resource leak in cx25821_dev_setup()
A resource leak in the cx25821 media driver can lead to memory exhaustion and denial of service if ioremap fails.
- 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-2026-43183?
CVE-2026-43183 is a medium-severity denial of service vulnerability in Linux kernel, published on 6 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:
media: cx25821: Fix a resource leak in cx25821_dev_setup()
Add release_mem_region() if ioremap() fails to release the memory region obtained by cx25821_get_resources().
Weakness: CWE-401
Which versions are affected by CVE-2026-43183?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-43183?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-43183 being exploited?
There is no known exploitation of CVE-2026-43183 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-43183, DEBIAN-CVE-2026-43183, GHSA-rfv7-274m-vphw, ROOT-OS-DEBIAN-11-CVE-2026-43183, ROOT-OS-UBUNTU-2204-CVE-2026-43183, ROOT-OS-UBUNTU-2404-CVE-2026-43183 and 1 more.