In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx6: fix firmware leak on teardown The firmware requested in gfx_v6_0_init_microcode() is not released when the GFX block is torn down, leaking the firmware resources. Add gfx_v6_0_free_microcode() and call it from gfx_v6_0_sw_fini() to release the PFP, ME, CE and RLC firmware. (cherry picked from commit 386e81346f95ab0be5a82c5535de932e7a456924)
https://git.kernel.org/stable/c/cc172e177795c5f87bc2d71768d077e1c10633e8
https://git.kernel.org/stable/c/652f631e2e3a8d3b11ad72dd0b8e59b5183de0d9
https://git.kernel.org/stable/c/4b70c6b34912ca0b4066f56fd627d785dfbfe1fa
https://git.kernel.org/stable/c/3a86ebf6aa8b0a845e6188daaa6f530fe67ff00e