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CVE-2021-47530

drm/msm: Fix wait_fence submitqueue leak

EPSS 0.2%
In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix wait_fence submitqueue leak We weren't dropping the submitqueue reference in all paths. In particular, when the fence has already been signalled. Split out a helper to simplify handling this in the various different return paths.
Affected products
Linux · Linux

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References
https://git.kernel.org/stable/c/4c3cdbf2540319ea674f1f3c54f31f14c6f39647https://git.kernel.org/stable/c/ea0006d390a28012f8187717aea61498b2b341e5