CVE-2026-43162 media: tegra-video: Fix memory leak in __tegra_channel_try_format()
A memory leak in the Tegra video driver allows attackers to exhaust kernel memory, potentially causing a denial of service.
- 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-2026-43162?
CVE-2026-43162 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: tegra-video: Fix memory leak in __tegra_channel_try_format()
The state object allocated by __v4l2_subdev_state_alloc() must be freed with __v4l2_subdev_state_free() when it is no longer needed.
In __tegra_channel_try_format(), two error paths return directly after v4l2_subdev_call() fails, without freeing the allocated 'sd_state' object. This violates the requirement and causes a memory leak.
Fix this by introducing a cleanup label and using goto statements in the error paths to ensure that __v4l2_subdev_state_free() is always called before the function returns.
Weakness: CWE-401
Which versions are affected by CVE-2026-43162?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-43162?
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-2026-43162 being exploited?
There is no known exploitation of CVE-2026-43162 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-43162, DEBIAN-CVE-2026-43162, GHSA-m5gj-w75c-gcxx, ROOT-OS-DEBIAN-11-CVE-2026-43162, ROOT-OS-UBUNTU-2204-CVE-2026-43162, ROOT-OS-UBUNTU-2404-CVE-2026-43162 and 1 more.