ASN.1: Fix an indefinite length skip error

Fix an error in asn1_find_indefinite_length() whereby small definite length
elements of size 0x7f are incorrecly classified as non-small.  Without this
fix, an error will be given as the length of the length will be perceived as
being very much greater than the maximum supported size.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

diff --git a/lib/asn1_decoder.c b/lib/asn1_decoder.c
index de2c8b5a715bd9c1f75129bc40293ac68f1f92e9..5293d2433029d391c3b95c18320d45c77d117c67 100644 (file)
--- a/lib/asn1_decoder.c
+++ b/lib/asn1_decoder.c
@@ -91,7 +91,7 @@ next_tag:
 
        /* Extract the length */
        len = data[dp++];
-       if (len < 0x7f) {
+       if (len <= 0x7f) {
                dp += len;
                goto next_tag;
        }