diff options
| author | Linux Build Service Account <lnxbuild@localhost> | 2019-07-02 07:13:43 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2019-07-02 07:13:43 -0700 |
| commit | 7e4d8780224c17e630b8e0538d1da84b5da14b14 (patch) | |
| tree | f1d81ac36c56f2cb2765a17752db5432c67f8d7b /drivers/gpu | |
| parent | 79a8f215703e1400e53abea8f6028593210f4ece (diff) | |
| parent | 5e073ffd6668d78fc9b6073511c99b974b4fcf7c (diff) | |
Merge "drm/msm/dsi-staging: Add range check in debugfs_dump_info_read"
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/msm/dsi-staging/dsi_display.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/dsi-staging/dsi_display.c b/drivers/gpu/drm/msm/dsi-staging/dsi_display.c index 742760cc791c..8e25260d21c0 100644 --- a/drivers/gpu/drm/msm/dsi-staging/dsi_display.c +++ b/drivers/gpu/drm/msm/dsi-staging/dsi_display.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved. + * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -98,6 +98,9 @@ static ssize_t debugfs_dump_info_read(struct file *file, "\tClock master = %s\n", display->ctrl[display->clk_master_idx].ctrl->name); + if (len > count) + len = count; + if (copy_to_user(buff, buf, len)) { kfree(buf); return -EFAULT; |