diff options
| author | Hui Wang <hui.wang@canonical.com> | 2021-02-08 18:38:57 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-04 10:26:24 +0100 |
| commit | 790c0dcbb519f2f1336a797072f5cffd43beb168 (patch) | |
| tree | 63e5e539b600f58cede86b803147d835857f97d4 /sound/soc/sof | |
| parent | 624d18332e13700b845394b07bbac630adbbdb96 (diff) | |
ASoC: SOF: debug: Fix a potential issue on string buffer termination
[ Upstream commit 9037c3bde65d339017ef41d81cb58069ffc321d4 ]
The function simple_write_to_buffer() doesn't add string termination
at the end of buf, we need to handle it on our own. This change refers
to the function tokenize_input() in debug.c and the function
sof_dfsentry_trace_filter_write() in trace.c.
Fixes: 091c12e1f50c ("ASoC: SOF: debug: add new debugfs entries for IPC flood test")
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20210208103857.75705-1-hui.wang@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound/soc/sof')
| -rw-r--r-- | sound/soc/sof/debug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/sof/debug.c b/sound/soc/sof/debug.c index 5529e8eeca46..08726034ff09 100644 --- a/sound/soc/sof/debug.c +++ b/sound/soc/sof/debug.c @@ -135,7 +135,7 @@ static ssize_t sof_dfsentry_write(struct file *file, const char __user *buffer, char *string; int ret; - string = kzalloc(count, GFP_KERNEL); + string = kzalloc(count+1, GFP_KERNEL); if (!string) return -ENOMEM; |