The "p" pointer is void so sizeof(*p) is 1. The intent was to check
sizeof(*cs_desc), which is 3, instead.
Fixes: ecfd41166b72 ("ALSA: usb-audio: Validate UAC3 cluster segment descriptors")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
sound/usb/stream.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index acf3dc2d79e0..5c235a5ba7e1 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -349,7 +349,7 @@ snd_pcm_chmap_elem *convert_chmap_v3(struct uac3_cluster_header_descriptor
u16 cs_len;
u8 cs_type;
- if (len < sizeof(*p))
+ if (len < sizeof(*cs_desc))
break;
cs_len = le16_to_cpu(cs_desc->wLength);
if (len < cs_len)
--
2.47.2
