Description
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.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 97d642e23037c5545266f9564c9b81e6db81b122, < b2d7a97d75b648a643f60d77f4d6d70161268855; >= 97d642e23037c5545266f9564c9b81e6db81b122, < 685d9d1e5c47e024413981fb7eddab86132b04a1; >= 97d642e23037c5545266f9564c9b81e6db81b122, < 56fe8e5f313a64e458bb6f8b982de925345e21a7; >= 97d642e23037c5545266f9564c9b81e6db81b122, < 8e76ab81319858736ccf23141e9415f9a1869337; >= 97d642e23037c5545266f9564c9b81e6db81b122, < 70b9482926ca92862460e659f5e5fde99ae0b4fa; >= 97d642e23037c5545266f9564c9b81e6db81b122, < 0fc740c25c9abb25113398ebb58e2f2ce57741a7; >= 97d642e23037c5545266f9564c9b81e6db81b122, < 470edb012b1d9a4fba1cd59e329e60f0798c791a; >= 97d642e23037c5545266f9564c9b81e6db81b122, < 579c049b4cb6fc72ce2c505fc5334540be0efcd3 |
| Linux | Linux | 5.7 |
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
- https://git.kernel.org/stable/c/70b9482926ca92862460e659f5e5fde99ae0b4fa
- https://git.kernel.org/stable/c/8e76ab81319858736ccf23141e9415f9a1869337
- https://git.kernel.org/stable/c/b2d7a97d75b648a643f60d77f4d6d70161268855
Timeline
- Published
- Sep 17, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received