This is a note to let you know that I've just added the patch titled
drm/amdgpu: Fix the uninitialized variable warning
to the 6.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-fix-the-uninitialized-variable-warning.patch
and it can be found in the queue-6.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 84a43555ffad6222e7584ab959f345a439517d34
Author: Ma Jun <Jun.Ma2@xxxxxxx>
Date: Wed Apr 24 15:44:56 2024 +0800
drm/amdgpu: Fix the uninitialized variable warning
[ Upstream commit 7e39d7ec35883a168343ea02f40e260e176c6c63 ]
Check the user input and phy_id value range to fix
"Using uninitialized value phy_id"
Signed-off-by: Ma Jun <Jun.Ma2@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c
index 8ed0e073656f..41ebe690eeff 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_securedisplay.c
@@ -135,6 +135,10 @@ static ssize_t amdgpu_securedisplay_debugfs_write(struct file *f, const char __u
mutex_unlock(&psp->securedisplay_context.mutex);
break;
case 2:
+ if (size < 3 || phy_id >= TA_SECUREDISPLAY_MAX_PHY) {
+ dev_err(adev->dev, "Invalid input: %s\n", str);
+ return -EINVAL;
+ }
mutex_lock(&psp->securedisplay_context.mutex);
psp_prep_securedisplay_cmd_buf(psp, &securedisplay_cmd,
TA_SECUREDISPLAY_COMMAND__SEND_ROI_CRC);
