From a33955ce8fd9c3e1b03f2bfc960499919ee1449f Mon Sep 17 00:00:00 2001 From: Neels Hofmeyr Date: Thu, 27 Apr 2023 05:43:51 +0200 Subject: [PATCH] asn1tostruct.py: fix leak in error paths of iesDefs Related: SYS#6297 Change-Id: I424c4ea2681f5c9a5eec99396502615de5eab841 --- asn1/utils/asn1tostruct.py | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/asn1/utils/asn1tostruct.py b/asn1/utils/asn1tostruct.py index 9b1c1a11..f39f45bd 100755 --- a/asn1/utils/asn1tostruct.py +++ b/asn1/utils/asn1tostruct.py @@ -328,6 +328,7 @@ for key in iesDefs: f.write(" int i, decoded = 0;\n") if len(iesDefs[key]["ies"]) != 0: f.write(" int tempDecoded = 0;\n") + f.write(" int rc = -1;\n") f.write(" assert(any_p != NULL);\n") if len(iesDefs[key]["ies"]) != 0: @@ -364,7 +365,7 @@ for key in iesDefs: f.write(" tempDecoded = ANY_to_type_aper(&ie_p->value, &asn_DEF_%s, (void**)&%s_p);\n" % (ietypeunderscore, lowerFirstCamelWord(ietypesubst))) f.write(" if (tempDecoded < 0) {\n") f.write(" %s_DEBUG(\"Decoding of IE %s failed\\n\");\n" % (fileprefix.upper(), ienameunderscore)) - f.write(" return -1;\n") + f.write(" goto free_and_return_rc;\n") f.write(" }\n") f.write(" decoded += tempDecoded;\n") f.write(" if (asn1_xer_print)\n") @@ -379,11 +380,14 @@ for key in iesDefs: f.write(" } break;\n") f.write(" default:\n") f.write(" %s_DEBUG(\"Unknown protocol IE id (%%d) for message %s\\n\", (int)ie_p->id);\n" % (fileprefix.upper(), re.sub('-', '_', structName.lower()))) - f.write(" return -1;\n") + f.write(" goto free_and_return_rc;\n") f.write(" }\n") f.write(" }\n") + f.write(" rc = decoded;\n") + f.write("\n") + f.write("free_and_return_rc:\n") f.write(" ASN_STRUCT_FREE(asn_DEF_%s, %s_p);\n" % (asn1cStruct, asn1cStructfirstlower)) - f.write(" return decoded;\n") + f.write(" return rc;\n") f.write("}\n\n") for key in iesDefs: