From f8c5e7fb75cd741fb576ddb4de8fcd61f9907549 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Sun, 22 Jan 2023 13:49:19 +0100
Subject: [PATCH] buf: Fix return value of xmlBufGetInputBase
Don't return (size_t) -1 in error case.
Found with libFuzzer and -fsanitize=implicit-conversion.
Reference:https://github.com/GNOME/libxml2/commit/f8c5e7fb75cd741fb576ddb4de8fcd61f9907549
Conflict:NA
---
buf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/buf.c b/buf.c
index 69370b7..d8992f7 100644
--- a/buf.c
+++ b/buf.c
@@ -1283,7 +1283,7 @@ xmlBufGetInputBase(xmlBufPtr buf, xmlParserInputPtr input) {
size_t base;
if ((input == NULL) || (buf == NULL) || (buf->error))
- return(-1);
+ return(0);
CHECK_COMPAT(buf)
base = input->base - buf->content;
/*
--
2.27.0