UNKNOWN NVD
CVE-2026-90249
In the Linux kernel, the following vulnerability has been resolved: iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes The IIO core does
In the Linux kernel, the following vulnerability has been resolved:
iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes
The IIO core does not filter duplicate writes to the event enable
attribute, so writing the same value twice invokes
write_event_config() twice. Enabling twice leaks a runtime PM
reference, preventing the device from ever suspending again;
disabling twice underflows the usage count and triggers a
"Runtime PM usage count underflow" warning.
Bail out early when the requested state matches the current state.
While at it, switch to pm_runtime_resume_and_get() so a failed
resume is propagated to userspace instead of silently marking the
event enabled.
References
- https://git.kernel.org/stable/c/0fc740c25c9abb25113398ebb58e2f2ce57741a7
- https://git.kernel.org/stable/c/470edb012b1d9a4fba1cd59e329e60f0798c791a
- https://git.kernel.org/stable/c/56fe8e5f313a64e458bb6f8b982de925345e21a7
- https://git.kernel.org/stable/c/579c049b4cb6fc72ce2c505fc5334540be0efcd3
- https://git.kernel.org/stable/c/685d9d1e5c47e024413981fb7eddab86132b04a1
This unknown severity vulnerability was published on 2026-09-17 via NVD.
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