Hi Peilin, > Check upon `num_rsp` is insufficient. A malformed event packet with a > large `num_rsp` number makes hci_extended_inquiry_result_evt() go out > of bounds. Fix it. > > This patch fixes the following syzbot bug: > > https://syzkaller.appspot.com/bug?id=4bf11aa05c4ca51ce0df86e500fce486552dc8d2 > > Reported-by: syzbot+d8489a79b781849b9c46@xxxxxxxxxxxxxxxxxxxxxxxxx > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Peilin Ye <yepeilin.cs@xxxxxxxxx> > --- > Change in v3: > - Minimum `skb->len` requirement was 1 byte inaccurate since `info` > starts from `skb->data + 1`. Fix it. > > Changes in v2: > - Use `skb->len` instead of `skb->truesize` as the length limit. > - Leave `num_rsp` as of type `int`. > > net/bluetooth/hci_event.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) patch has been applied to bluetooth-next tree. Regards Marcel
