CVE-2023-53177 media: hi846: fix usage of pm_runtime_get_if_in_use()
A refcount underflow in the hi846 camera driver during system resume can cause a kernel crash, leading to 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-2023-53177?
CVE-2023-53177 is a medium-severity vulnerability in Linux kernel, published on 15 Sep 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: hi846: fix usage of pm_runtime_get_if_in_use()
pm_runtime_get_if_in_use() does not only return nonzero values when the device is in use, it can return a negative errno too.
And especially during resuming from system suspend, when runtime pm is not yet up again, -EAGAIN is being returned, so the subsequent pm_runtime_put() call results in a refcount underflow.
Fix system-resume by handling -EAGAIN of pm_runtime_get_if_in_use().
Which versions are affected by CVE-2023-53177?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-53177?
Apply the vendor's patch.
Is CVE-2023-53177 being exploited?
There is no known exploitation of CVE-2023-53177 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-53177, DEBIAN-CVE-2023-53177, GHSA-8v2f-4w7g-97h8, UBUNTU-CVE-2023-53177.