Patch "drm/amdgpu: fix out of bounds write" has been added to the 5.10-stable tree

[<gregkh@xxxxxxxxxxxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    drm/amdgpu: fix out of bounds write

to the 5.10-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-out-of-bounds-write.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 5afa7898ab7a0ec9c28556a91df714bf3c2f725e Mon Sep 17 00:00:00 2001
From: Thelford Williams <tdwilliamsiv@xxxxxxxxx>
Date: Wed, 13 Oct 2021 16:04:13 -0400
Subject: drm/amdgpu: fix out of bounds write

From: Thelford Williams <tdwilliamsiv@xxxxxxxxx>

commit 5afa7898ab7a0ec9c28556a91df714bf3c2f725e upstream.

Size can be any value and is user controlled resulting in overwriting the
40 byte array wr_buf with an arbitrary length of data from buf.

Signed-off-by: Thelford Williams <tdwilliamsiv@xxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -264,7 +264,7 @@ static ssize_t dp_link_settings_write(st
 	if (!wr_buf)
 		return -ENOSPC;
 
-	if (parse_write_buffer_into_params(wr_buf, size,
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
 					   (long *)param, buf,
 					   max_param_num,
 					   &param_nums)) {


Patches currently in stable-queue which might be from tdwilliamsiv@xxxxxxxxx are

queue-5.10/drm-amdgpu-fix-out-of-bounds-write.patch