* [PATCH] 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.
@ 2021-10-11 20:21 docfate111
0 siblings, 0 replies; only message in thread
From: docfate111 @ 2021-10-11 20:21 UTC (permalink / raw)
To: dri-devel; +Cc: harry.wentland, sunpeng.li
Signed-off-by: docfate111 <tdwilliamsiv@gmail.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index 87daa78a32b8..17f2756a64dc 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -263,7 +263,7 @@ static ssize_t dp_link_settings_write(struct file *f, const char __user *buf,
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,
¶m_nums)) {
--
2.25.1
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2021-10-11 20:21 [PATCH] 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 docfate111
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