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Message-ID: <20240801003643.3938534-11-sashal@kernel.org>
Date: Wed, 31 Jul 2024 20:35:17 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
stable@...r.kernel.org
Cc: Ma Jun <Jun.Ma2@....com>,
Christian König <christian.koenig@....com>,
Tim Huang <Tim.Huang@....com>,
Alex Deucher <alexander.deucher@....com>,
Sasha Levin <sashal@...nel.org>,
Xinhui.Pan@....com,
airlied@...il.com,
daniel@...ll.ch,
shashank.sharma@....com,
hannes@...xchg.org,
friedrich.vock@....de,
andrealmeid@...lia.com,
amd-gfx@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 5.10 11/38] drm/amdgpu: Fix out-of-bounds write warning
From: Ma Jun <Jun.Ma2@....com>
[ Upstream commit be1684930f5262a622d40ce7a6f1423530d87f89 ]
Check the ring type value to fix the out-of-bounds
write warning
Signed-off-by: Ma Jun <Jun.Ma2@....com>
Suggested-by: Christian König <christian.koenig@....com>
Reviewed-by: Tim Huang <Tim.Huang@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 6976f61be7341..b78feb8ba01e1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -260,7 +260,7 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
ring->priority = DRM_SCHED_PRIORITY_NORMAL;
mutex_init(&ring->priority_mutex);
- if (!ring->no_scheduler) {
+ if (!ring->no_scheduler && ring->funcs->type < AMDGPU_HW_IP_NUM) {
hw_ip = ring->funcs->type;
num_sched = &adev->gpu_sched[hw_ip][hw_prio].num_scheds;
adev->gpu_sched[hw_ip][hw_prio].sched[(*num_sched)++] =
--
2.43.0
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