Description
In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Clean dangling pointer on bind error path mtk_drm_bind() can fail, in which case drm_dev_put() is called, destroying the drm_device object. However a pointer to it was still being held in the private object, and that pointer would be passed along to DRM in mtk_drm_sys_prepare() if a suspend were triggered at that point, resulting in a panic. Clean the pointer when destroying the object in the error path to prevent this from happening.
Product status
119f5173628aa7a0c3cf9db83460d40709e8241d (git) before 9a48f99aa7bea15e0b1d8b0040c46b4792eddf3b
119f5173628aa7a0c3cf9db83460d40709e8241d (git) before a161f1d92aabb3b8463f752bdc3474dc3a5ec0e5
119f5173628aa7a0c3cf9db83460d40709e8241d (git) before 6a89ddee1686a8872384aaa9f0bcfa6b675acd86
119f5173628aa7a0c3cf9db83460d40709e8241d (git) before 49cf87919daeeeeeb9e924c39bdd9203af434461
119f5173628aa7a0c3cf9db83460d40709e8241d (git) before 7b551a501fa714890e55bae73efede1185728d72
119f5173628aa7a0c3cf9db83460d40709e8241d (git) before f3887c771576c5d740c5c5b8bf654a8ab8020b7d
119f5173628aa7a0c3cf9db83460d40709e8241d (git) before 36aa8c61af55675ed967900fbe5deb32d776f051
4.7
Any version before 4.7
4.19.276 (semver)
5.4.235 (semver)
5.10.173 (semver)
5.15.99 (semver)
6.1.16 (semver)
6.2.3 (semver)
6.3 (original_commit_for_fix)
References
git.kernel.org/...c/9a48f99aa7bea15e0b1d8b0040c46b4792eddf3b
git.kernel.org/...c/a161f1d92aabb3b8463f752bdc3474dc3a5ec0e5
git.kernel.org/...c/6a89ddee1686a8872384aaa9f0bcfa6b675acd86
git.kernel.org/...c/49cf87919daeeeeeb9e924c39bdd9203af434461
git.kernel.org/...c/7b551a501fa714890e55bae73efede1185728d72
git.kernel.org/...c/f3887c771576c5d740c5c5b8bf654a8ab8020b7d
git.kernel.org/...c/36aa8c61af55675ed967900fbe5deb32d776f051
