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Diffstat (limited to 'sound/usb/format.c')
-rw-r--r--sound/usb/format.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/usb/format.c b/sound/usb/format.c
index 93459ba228d3..9ebc5d202c87 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -39,6 +39,8 @@ static u64 parse_audio_format_i_type(struct snd_usb_audio *chip,
case UAC_VERSION_1:
default: {
struct uac_format_type_i_discrete_descriptor *fmt = _fmt;
+ if (format >= 64)
+ return 0; /* invalid format */
sample_width = fmt->bBitResolution;
sample_bytes = fmt->bSubframeSize;
format = 1ULL << format;