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| author | Ruslan Bilovol <ruslan.bilovol@gmail.com> | 2018-05-18 01:08:59 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-05-18 09:40:40 +0300 |
| commit | 6cd17ea70b26f66651c7afc123245e379dd14450 (patch) | |
| tree | e9ad17c7b5c1f35142a8a0638f216247cef0a80e /sound/usb | |
| parent | 11d42c81036324697d367600bfc16f6dd37636fd (diff) | |
| download | linux-6cd17ea70b26f66651c7afc123245e379dd14450.tar.xz | |
ALSA: usb: stream: fix potential memory leak during uac3 interface parsing
UAC3 channel map is created during interface parsing,
and in some cases was not freed in failure paths.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/stream.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sound/usb/stream.c b/sound/usb/stream.c index bce315240955..d16e1c23f4e9 100644 --- a/sound/usb/stream.c +++ b/sound/usb/stream.c @@ -982,13 +982,16 @@ snd_usb_get_audioformat_uac3(struct snd_usb_audio *chip, dev_err(&dev->dev, "%u:%d : bogus bTerminalLink %d\n", iface_no, altno, as->bTerminalLink); + kfree(chmap); return NULL; found_clock: fp = audio_format_alloc_init(chip, alts, UAC_VERSION_3, iface_no, altset_idx, altno, num_channels, clock); - if (!fp) + if (!fp) { + kfree(chmap); return ERR_PTR(-ENOMEM); + } fp->chmap = chmap; @@ -1009,6 +1012,7 @@ found_clock: iface_no); /* ok, let's parse further... */ if (snd_usb_parse_audio_format_v3(chip, fp, as, stream) < 0) { + kfree(fp->chmap); kfree(fp->rate_table); kfree(fp); return NULL; |