CVE-2026-99049 gpio: xilinx: fix runtime PM leak on request error path
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-99049?
CVE-2026-99049 is a vulnerability in Linux, published on 23 Oct 2026.
Official description
In the Linux kernel, the following vulnerability has been resolved:
gpio: xilinx: fix runtime PM leak on request error path
pm_runtime_get_sync() leaves the usage counter incremented even when it fails, and xgpio_request() returns the error without dropping it.
gpiolib does not call ->free() when ->request() fails, so xgpio_free(), which holds the only matching pm_runtime_put(), never runs. The reference is leaked and the controller can no longer runtime-suspend, so its clock stays enabled.
Switch to pm_runtime_resume_and_get(), which only increments the usage counter on success.
Which versions are affected by CVE-2026-99049?
How do I fix CVE-2026-99049?
Upgrade to a fixed version.
Is CVE-2026-99049 being exploited?
There is no known exploitation of CVE-2026-99049 in the wild and no public exploit code.
Sources
Also known as AZL-110927, BELL-CVE-2026-99049, DEBIAN-CVE-2026-99049, GHSA-gqf7-c35f-5xh6, UBUNTU-CVE-2026-99049.