Description
In the Linux kernel, the following vulnerability has been resolved: media: hi846: fix usage of pm_runtime_get_if_in_use() pm_runtime_get_if_in_use() does not only return nonzero values when the device is in use, it can return a negative errno too. And especially during resuming from system suspend, when runtime pm is not yet up again, -EAGAIN is being returned, so the subsequent pm_runtime_put() call results in a refcount underflow. Fix system-resume by handling -EAGAIN of pm_runtime_get_if_in_use().
Product status
e8c0882685f9152f0d729664a12bcbe749cb7736 (git) before 42ec6269f98edd915ee37da3c6456bb6243ea56a
e8c0882685f9152f0d729664a12bcbe749cb7736 (git) before c5dcd7a19f1ed8fe98384f3a9444c7c53befd74e
e8c0882685f9152f0d729664a12bcbe749cb7736 (git) before 04fc06f6dc1592ed5d675311ac50d8fba5db62ab
5.16
Any version before 5.16
6.1.39 (semver)
6.4.4 (semver)
6.5 (original_commit_for_fix)
References
git.kernel.org/...c/42ec6269f98edd915ee37da3c6456bb6243ea56a
git.kernel.org/...c/c5dcd7a19f1ed8fe98384f3a9444c7c53befd74e
git.kernel.org/...c/04fc06f6dc1592ed5d675311ac50d8fba5db62ab