Commit ea67deb0 authored by Sunil Khatri's avatar Sunil Khatri Committed by Alex Deucher
Browse files

drm/amdgpu: fix out of bounds access in gfx11 during ip dump 



During ip dump in gfx11 the index variable is reused but is
not reinitialized to 0 and this causes the index calculation
to be wrong and access out of bound access.

Acked-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarSunil Khatri <sunil.khatri@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 94845ea0

drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c

+2 −0
Original line number Diff line number Diff line
@@ -6411,6 +6411,7 @@ static void gfx_v11_ip_print(void *handle, struct drm_printer *p) 
	if (!adev->gfx.ip_dump_gfx_queues)

		return;



	index = 0;

	reg_count = ARRAY_SIZE(gc_gfx_queue_reg_list_11);

	drm_printf(p, "\nnum_me: %d num_pipe: %d num_queue: %d\n",

		   adev->gfx.me.num_me,
@@ -6475,6 +6476,7 @@ static void gfx_v11_ip_dump(void *handle) 
	if (!adev->gfx.ip_dump_gfx_queues)

		return;



	index = 0;

	reg_count = ARRAY_SIZE(gc_gfx_queue_reg_list_11);

	amdgpu_gfx_off_ctrl(adev, false);

	mutex_lock(&adev->srbm_mutex);