CVE-2026-90249
Description
AI Translation Available
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.
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
https://git.kernel.org/stable/c/70b9482926ca92862460e659f5e5fde99ae0b4fa
https://git.kernel.org/stable/c/8e76ab81319858736ccf23141e9415f9a1869337
https://git.kernel.org/stable/c/b2d7a97d75b648a643f60d77f4d6d70161268855