Fix asn1_item_print_ctx
The call to asn1_do_adb can return NULL on error, so we should check the
return value before attempting to use it.
(Imported from upstream's 34a7ed0c39aa3ab67eea1e106577525eaf0d7a00.)
Change-Id: Ia43cdc73b5f1d16e6fc907b5aaf13c9df5a9958c
Reviewed-on: https://boringssl-review.googlesource.com/4007
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/crypto/asn1/tasn_prn.c b/crypto/asn1/tasn_prn.c
index 4eb522d..6684cdf 100644
--- a/crypto/asn1/tasn_prn.c
+++ b/crypto/asn1/tasn_prn.c
@@ -309,6 +309,8 @@
{
const ASN1_TEMPLATE *seqtt;
seqtt = asn1_do_adb(fld, tt, 1);
+ if (!seqtt)
+ return 0;
tmpfld = asn1_get_field_ptr(fld, seqtt);
if (!asn1_template_print_ctx(out, tmpfld,
indent + 2, seqtt, pctx))
