From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
This adds checks for number of attributes is within the valid range and
if the data pointer is valid.
---
android/avrcp-lib.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/android/avrcp-lib.c b/android/avrcp-lib.c
index 999e8aa..3d27856 100644
--- a/android/avrcp-lib.c
+++ b/android/avrcp-lib.c
@@ -1912,8 +1912,15 @@ int avrcp_get_item_attributes(struct avrcp *session, uint8_t scope,
iov, 1, get_item_attributes_rsp,
session);
- for (i = 0; i < number; i++)
+ if (number > AVRCP_MEDIA_ATTRIBUTE_LAST)
+ return -EINVAL;
+
+ for (i = 0; i < number; i++) {
+ if (attrs[i] > AVRCP_MEDIA_ATTRIBUTE_LAST ||
+ attrs[i] == AVRCP_MEDIA_ATTRIBUTE_ILLEGAL)
+ return -EINVAL;
put_be32(attrs[i], &attrs[i]);
+ }
iov[1].iov_base = attrs;
iov[1].iov_len = number * sizeof(*attrs);
--
1.9.0
--
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