From: Ruslan Bilovol <ruslan.bilovol@gmail.com> To: Takashi Iwai <tiwai@suse.com> Cc: Dan Carpenter <dan.carpenter@oracle.com>, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: [PATCH] ALSA: usb: stream: fix potential memory leak during uac3 interface parsing Date: Fri, 18 May 2018 01:08:59 +0300 [thread overview] Message-ID: <1526594939-21084-1-git-send-email-ruslan.bilovol@gmail.com> (raw) 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> --- sound/usb/stream.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sound/usb/stream.c b/sound/usb/stream.c index bce3152..d16e1c2 100644 --- a/sound/usb/stream.c +++ b/sound/usb/stream.c @@ -982,13 +982,16 @@ static int parse_uac_endpoint_attributes(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 @@ static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip, 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; -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Ruslan Bilovol <ruslan.bilovol@gmail.com> To: Takashi Iwai <tiwai@suse.com> Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Dan Carpenter <dan.carpenter@oracle.com> Subject: [PATCH] ALSA: usb: stream: fix potential memory leak during uac3 interface parsing Date: Fri, 18 May 2018 01:08:59 +0300 [thread overview] Message-ID: <1526594939-21084-1-git-send-email-ruslan.bilovol@gmail.com> (raw) 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> --- sound/usb/stream.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sound/usb/stream.c b/sound/usb/stream.c index bce3152..d16e1c2 100644 --- a/sound/usb/stream.c +++ b/sound/usb/stream.c @@ -982,13 +982,16 @@ static int parse_uac_endpoint_attributes(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 @@ static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip, 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; -- 1.9.1
next reply other threads:[~2018-05-17 22:10 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-05-17 22:08 Ruslan Bilovol [this message] 2018-05-17 22:08 ` [PATCH] ALSA: usb: stream: fix potential memory leak during uac3 interface parsing Ruslan Bilovol 2018-05-18 6:52 ` Takashi Iwai 2018-05-18 6:52 ` Takashi Iwai
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