153aa9179Sopenharmony_ciFrom f8c5e7fb75cd741fb576ddb4de8fcd61f9907549 Mon Sep 17 00:00:00 2001
253aa9179Sopenharmony_ciFrom: Nick Wellnhofer <wellnhofer@aevum.de>
353aa9179Sopenharmony_ciDate: Sun, 22 Jan 2023 13:49:19 +0100
453aa9179Sopenharmony_ciSubject: [PATCH] buf: Fix return value of xmlBufGetInputBase
553aa9179Sopenharmony_ci
653aa9179Sopenharmony_ciDon't return (size_t) -1 in error case.
753aa9179Sopenharmony_ci
853aa9179Sopenharmony_ciFound with libFuzzer and -fsanitize=implicit-conversion.
953aa9179Sopenharmony_ci
1053aa9179Sopenharmony_ciReference:https://github.com/GNOME/libxml2/commit/f8c5e7fb75cd741fb576ddb4de8fcd61f9907549
1153aa9179Sopenharmony_ciConflict:NA
1253aa9179Sopenharmony_ci---
1353aa9179Sopenharmony_ci buf.c | 2 +-
1453aa9179Sopenharmony_ci 1 file changed, 1 insertion(+), 1 deletion(-)
1553aa9179Sopenharmony_ci
1653aa9179Sopenharmony_cidiff --git a/buf.c b/buf.c
1753aa9179Sopenharmony_ciindex 69370b7..d8992f7 100644
1853aa9179Sopenharmony_ci--- a/buf.c
1953aa9179Sopenharmony_ci+++ b/buf.c
2053aa9179Sopenharmony_ci@@ -1283,7 +1283,7 @@ xmlBufGetInputBase(xmlBufPtr buf, xmlParserInputPtr input) {
2153aa9179Sopenharmony_ci     size_t base;
2253aa9179Sopenharmony_ci 
2353aa9179Sopenharmony_ci     if ((input == NULL) || (buf == NULL) || (buf->error))
2453aa9179Sopenharmony_ci-        return(-1);
2553aa9179Sopenharmony_ci+        return(0);
2653aa9179Sopenharmony_ci     CHECK_COMPAT(buf)
2753aa9179Sopenharmony_ci     base = input->base - buf->content;
2853aa9179Sopenharmony_ci     /*
2953aa9179Sopenharmony_ci-- 
3053aa9179Sopenharmony_ci2.27.0
3153aa9179Sopenharmony_ci
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