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authorTakashi Iwai <tiwai@suse.de>2019-08-20 18:17:09 +0300
committerTakashi Iwai <tiwai@suse.de>2019-08-22 11:35:59 +0300
commit57f8770620e9b51c61089751f0b5ad3dbe376ff2 (patch)
tree3302223d107681aa8b7558e68fdf1bf322cdc4b4 /sound/usb/Makefile
parentf9f0e9ed350e15d51ad07364b4cf910de50c472a (diff)
downloadlinux-57f8770620e9b51c61089751f0b5ad3dbe376ff2.tar.xz
ALSA: usb-audio: More validations of descriptor units
Introduce a new helper to validate each audio descriptor unit before and check the unit before actually accessing it. This should harden against the OOB access cases with malformed descriptors that have been recently frequently reported by fuzzers. The existing descriptor checks are still kept although they become superfluous after this patch. They'll be cleaned up eventually later. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/Makefile')
-rw-r--r--sound/usb/Makefile3
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/usb/Makefile b/sound/usb/Makefile
index e1ce257ab705..d27a21b0ff9c 100644
--- a/sound/usb/Makefile
+++ b/sound/usb/Makefile
@@ -16,7 +16,8 @@ snd-usb-audio-objs := card.o \
power.o \
proc.o \
quirks.o \
- stream.o
+ stream.o \
+ validate.o
snd-usb-audio-$(CONFIG_SND_USB_AUDIO_USE_MEDIA_CONTROLLER) += media.o