From f88da7fbf665ffdcbf5b439922a231bec6c0cf01 Mon Sep 17 00:00:00 2001
From: Jack Xiao <Jack.Xiao@amd.com>
Date: Mon, 22 Apr 2024 16:22:54 +0800
Subject: [PATCH] drm/amdgpu/mes: fix use-after-free issue
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Delete fence fallback timer to fix the ramdom
use-after-free issue.

v2: move to amdgpu_mes.c

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Acked-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index 7d215f280aab8..310c8f0c21da9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -1128,6 +1128,7 @@ void amdgpu_mes_remove_ring(struct amdgpu_device *adev,
 		return;
 
 	amdgpu_mes_remove_hw_queue(adev, ring->hw_queue_id);
+	del_timer_sync(&ring->fence_drv.fallback_timer);
 	amdgpu_ring_fini(ring);
 	kfree(ring);
 }
-- 
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