From: Ma Jun <Jun.Ma2@amd.com>
To: <amd-gfx@lists.freedesktop.org>, <christian.koenig@amd.com>,
<Alexander.Deucher@amd.com>
Cc: Ma Jun <Jun.Ma2@amd.com>
Subject: [PATCH] drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number
Date: Tue, 7 May 2024 11:18:49 +0800 [thread overview]
Message-ID: <20240507031849.269814-1-Jun.Ma2@amd.com> (raw)
Check the fb_channel_number range to avoid the array out-of-bounds
read error
Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
---
drivers/gpu/drm/amd/amdgpu/df_v1_7.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/df_v1_7.c b/drivers/gpu/drm/amd/amdgpu/df_v1_7.c
index 5dfab80ffff2..cd298556f7a6 100644
--- a/drivers/gpu/drm/amd/amdgpu/df_v1_7.c
+++ b/drivers/gpu/drm/amd/amdgpu/df_v1_7.c
@@ -70,6 +70,8 @@ static u32 df_v1_7_get_hbm_channel_number(struct amdgpu_device *adev)
int fb_channel_number;
fb_channel_number = adev->df.funcs->get_fb_channel_number(adev);
+ if (fb_channel_number >= ARRAY_SIZE(df_v1_7_channel_number))
+ fb_channel_number = 0;
return df_v1_7_channel_number[fb_channel_number];
}
--
2.34.1
next reply other threads:[~2024-05-07 3:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-07 3:18 Ma Jun [this message]
2024-05-07 3:37 ` [PATCH] drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number Huang, Tim
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