What happened
In the Linux kernel, the following vulnerability has been resolved: spi: spi-qcom-qspi: Fix incomplete error handling in runtime PM The runtime PM functions had incomplete error handling that could leave the system in an inconsistent state. If any operation failed midway through suspend or resume, some resources would be left in the wrong state while others were already changed, leading to potential clock/power imbalances. Reorder the suspend/resume sequences to avoid brownout risk by ensuring the performance state is set appropriately before clocks are enabled and clocks are disabled before dropping the performance state. Fix by adding proper error checking for all operations and using goto-based cleanup to ensure all successfully acquired resources are properly released on any error.
Affected versions
Linux: cff80645d6d3134260d2ef007a7decb1edcfd4a6 through before 62dd3b8d3a92eb4e080b2ae491c2a5341654c1ee (git); cff80645d6d3134260d2ef007a7decb1edcfd4a6 through before bb18a346271f87889bd64a3861c9a656a3509ea6 (git); cff80645d6d3134260d2ef007a7decb1edcfd4a6 through before d283d5d4d9f6d081ddb65e371be26fffeb611c42 (git); 5.9 Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
No public PoC reference has passed the current publication threshold.