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| author | Wenwen Wang <wenwen@cs.uga.edu> | 2019-08-06 03:00:27 -0400 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-08-06 12:44:44 +0200 |
| commit | a67060201b746a308b1674f66bf289c9faef6d09 (patch) | |
| tree | d87075ec063df5a0a5fd98c92a708bbfa7cb2b36 /sound | |
| parent | d1d03306659d24cba3f594bbbb11a22ef32f45fe (diff) | |
| download | linux-a67060201b746a308b1674f66bf289c9faef6d09.tar.gz linux-a67060201b746a308b1674f66bf289c9faef6d09.tar.bz2 linux-a67060201b746a308b1674f66bf289c9faef6d09.zip | |
ALSA: usb-audio: fix a memory leak bug
In snd_usb_get_audioformat_uac3(), a structure for channel maps 'chmap' is
allocated through kzalloc() before the execution goto 'found_clock'.
However, this structure is not deallocated if the memory allocation for
'pd' fails, leading to a memory leak bug.
To fix the above issue, free 'fp->chmap' before returning NULL.
Fixes: 7edf3b5e6a45 ("ALSA: usb-audio: AudioStreaming Power Domain parsing")
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/usb/stream.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/usb/stream.c b/sound/usb/stream.c index 7ee9d17d0143..e852c7fd6109 100644 --- a/sound/usb/stream.c +++ b/sound/usb/stream.c @@ -1043,6 +1043,7 @@ found_clock: pd = kzalloc(sizeof(*pd), GFP_KERNEL); if (!pd) { + kfree(fp->chmap); kfree(fp->rate_table); kfree(fp); return NULL; |