libxml2/backport-malloc-fail-Fix-infinite-loop-in-xmlSkipBlankChars.patch
zhuofeng feb7e8218d backport upstream patches
(cherry picked from commit ec64ed27a9add0f7a9bf6ee351ad67302a60c383)
2023-06-20 11:16:46 +08:00

30 lines
857 B
Diff

From 71e81a4ce7946c43ca61124b142d86066590aeb0 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Wed, 2 Nov 2022 16:02:39 +0100
Subject: [PATCH 08/28] malloc-fail: Fix infinite loop in xmlSkipBlankChars
Found with libFuzzer, see #344.
Reference: https://github.com/GNOME/libxml2/commit/e129c1d1a27abdeaab44f4d59eb0cb5052df7c6f
Conflict: NA
---
parser.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/parser.c b/parser.c
index 443a216..780a8b3 100644
--- a/parser.c
+++ b/parser.c
@@ -2220,7 +2220,7 @@ xmlSkipBlankChars(xmlParserCtxtPtr ctxt) {
} else {
int expandPE = ((ctxt->external != 0) || (ctxt->inputNr != 1));
- while (1) {
+ while (ctxt->instate != XML_PARSER_EOF) {
if (IS_BLANK_CH(CUR)) { /* CHECKED tstblanks.xml */
NEXT;
} else if (CUR == '%') {
--
2.27.0