CVE-2024-49901
drm/msm/adreno: Assign msm_gpu->pdev earlier to avoid nullptrs
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drm/msm/adreno: Assign msm_gpu->pdev earlier to avoid nullptrs
In the Linux kernel, the following vulnerability has been resolved: drm/msm/adreno: Assign msm_gpu->pdev earlier to avoid nullptrs There are some cases, such as the one uncovered by Commit 46d4efcccc68 ("drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails") where msm_gpu_cleanup() : platform_set_drvdata(gpu->pdev, NULL); is called on gpu->pdev == NULL, as the GPU device has not been fully initialized yet. Turns out that there's more than just the aforementioned path that causes this to happen (e.g. the case when there's speedbin data in the catalog, but opp-supported-hw is missing in DT). Assigning msm_gpu->pdev earlier seems like the least painful solution to this, therefore do so. Patchwork: https://patchwork.freedesktop.org/patch/602742/
Reserved 2024-10-21 | Published 2024-10-21 | Updated 2024-12-19 | Assigner Linuxgit.kernel.org/...c/9288a9676c529ad9c856096db68fad812499bc4a
git.kernel.org/...c/9773737375b20070ea935203fd66cb9fa17c5acb
git.kernel.org/...c/e8ac2060597a5768e4699bb61d604b4c09927b85
git.kernel.org/...c/16007768551d5bfe53426645401435ca8d2ef54f
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