diff options
Diffstat (limited to 'ALSA-usb-audio-Fix-NULL-dereference-in-create_fixed_.patch')
| -rw-r--r-- | ALSA-usb-audio-Fix-NULL-dereference-in-create_fixed_.patch | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/ALSA-usb-audio-Fix-NULL-dereference-in-create_fixed_.patch b/ALSA-usb-audio-Fix-NULL-dereference-in-create_fixed_.patch deleted file mode 100644 index 37cdb213a..000000000 --- a/ALSA-usb-audio-Fix-NULL-dereference-in-create_fixed_.patch +++ /dev/null @@ -1,40 +0,0 @@ -From b0bb5691b38e2f439b071e226bad9f699c33b77d Mon Sep 17 00:00:00 2001 -From: Takashi Iwai <tiwai@suse.de> -Date: Tue, 15 Mar 2016 12:09:10 +0100 -Subject: [PATCH 1/2] ALSA: usb-audio: Fix NULL dereference in - create_fixed_stream_quirk() - -create_fixed_stream_quirk() may cause a NULL-pointer dereference by -accessing the non-existing endpoint when a USB device with a malformed -USB descriptor is used. - -This patch avoids it simply by adding a sanity check of bNumEndpoints -before the accesses. - -Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=971125 -Cc: <stable@vger.kernel.org> -Signed-off-by: Takashi Iwai <tiwai@suse.de> ---- - sound/usb/quirks.c | 6 ++++++ - 1 file changed, 6 insertions(+) - -diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c -index eef9b8e4b949..e128ca62eb44 100644 ---- a/sound/usb/quirks.c -+++ b/sound/usb/quirks.c -@@ -177,6 +177,12 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip, - } - alts = &iface->altsetting[fp->altset_idx]; - altsd = get_iface_desc(alts); -+ if (altsd->bNumEndpoints < 1) { -+ kfree(fp); -+ kfree(rate_table); -+ return -EINVAL; -+ } -+ - fp->protocol = altsd->bInterfaceProtocol; - - if (fp->datainterval == 0) --- -2.5.0 - |