Linux: spi: spi-qcom-qspi: Fix incomplete error handling in runtime PM
What fixes it
- 62dd3b8d3a92eb4e080b2ae491c2a5341654c1eeLinuxCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
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.
Text from CVE List
Affected versions 10
- Linuxaffected: cff80645d6d3134260d2ef007a7decb1edcfd4a6 before d9fa79ccd09204f626d382bdde1b8f5f4c5d03b3CVE List
- Linuxaffected: cff80645d6d3134260d2ef007a7decb1edcfd4a6 before 62dd3b8d3a92eb4e080b2ae491c2a5341654c1eeCVE List
- Linuxaffected: cff80645d6d3134260d2ef007a7decb1edcfd4a6 before bb18a346271f87889bd64a3861c9a656a3509ea6CVE List
- Linuxaffected: cff80645d6d3134260d2ef007a7decb1edcfd4a6 before d283d5d4d9f6d081ddb65e371be26fffeb611c42CVE List
- Linuxaffected: 5.9CVE List
- Linuxunaffected: all versions before 5.9CVE List
- Linuxunaffected: 6.6.158 through 6.6.*CVE List
- Linuxunaffected: 6.12.111 through 6.12.*CVE List
- Linuxunaffected: 6.18.53 through 6.18.*CVE List
- Linuxunaffected: 7.2CVE List
References 4
- git.kernel.org/stable/c/d9fa79ccd09204f626d382bdde1b8f5f4c5d03b3Referencevia CVE List
- git.kernel.org/stable/c/62dd3b8d3a92eb4e080b2ae491c2a5341654c1eeReferencevia CVE List
- git.kernel.org/stable/c/bb18a346271f87889bd64a3861c9a656a3509ea6Referencevia CVE List
- git.kernel.org/stable/c/d283d5d4d9f6d081ddb65e371be26fffeb611c42Referencevia CVE List