Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: gpio: zynq: fix runtime PM leak on request error path pm_runtime_get_sync() leaves the usage counter incremented even when it fails, and zynq_gpio_request() returns the error without dropping it. gpiolib does not call ->free() when ->request() fails, so zynq_gpio_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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 before e380fba02908b809f5bbef371259003cf5887bb4; affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 before a3e9b7f7c9558f8c9592f8f817557bff98707bb3; affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 before 60a76cdd92e25f576dc58d756a565760dde1f7a1; affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 before 25c08be2a5e7715f19a6e02bbe9b0e5f01c77aac; affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 before 6e05f1c614a57a5d4c364dd12e20c6fd012f9d3e; affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 before 58a417a19d80141fff3abe6004e2e47285506e73; affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 before 6e20dabffbcd7b222d8e7bb85a7d8e8325df7699; affected 3242ba117e9bd29eb748afd6f6fbfbd6dd7cfe52 before e9438ab5328a177c9c0e5df87eb92a7162841e98 |
| Linux / Linux | affected 3.17; unaffected 0 before 3.17; unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.55 through 6.18.*; unaffected 7.2.9 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e380fba02908b809f5bbef371259003cf5887bb4
- https://git.kernel.org/stable/c/a3e9b7f7c9558f8c9592f8f817557bff98707bb3
- https://git.kernel.org/stable/c/60a76cdd92e25f576dc58d756a565760dde1f7a1
- https://git.kernel.org/stable/c/25c08be2a5e7715f19a6e02bbe9b0e5f01c77aac
- https://git.kernel.org/stable/c/6e05f1c614a57a5d4c364dd12e20c6fd012f9d3e
- https://git.kernel.org/stable/c/58a417a19d80141fff3abe6004e2e47285506e73
- https://git.kernel.org/stable/c/6e20dabffbcd7b222d8e7bb85a7d8e8325df7699
- https://git.kernel.org/stable/c/e9438ab5328a177c9c0e5df87eb92a7162841e98