From: Evgeny Vereshchagin <evvers@ya.ru>
Date: Thu, 21 May 2020 06:20:01 +0000 (+0200)
Subject: oss-fuzz: turn on the pointer-overflow check
X-Git-Tag: v246-rc1~308^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1f034000a5343c6580338b1b306307525df5f6bf;p=thirdparty%2Fsystemd.git

oss-fuzz: turn on the pointer-overflow check

It's off by default on OSS-Fuzz but it should be safe to turn it on
manually: https://github.com/google/oss-fuzz/issues/659#issuecomment-631897889

Just a follow-up to https://github.com/systemd/systemd/pull/15865.
---

diff --git a/tools/oss-fuzz.sh b/tools/oss-fuzz.sh
index 79846f87879..5b8690b687f 100755
--- a/tools/oss-fuzz.sh
+++ b/tools/oss-fuzz.sh
@@ -27,9 +27,15 @@ build=$WORK/build
 rm -rf $build
 mkdir -p $build
 
-fuzzflag="oss-fuzz=true"
 if [ -z "$FUZZING_ENGINE" ]; then
     fuzzflag="llvm-fuzz=true"
+else
+    fuzzflag="oss-fuzz=true"
+    if [[ "$SANITIZER" == undefined ]]; then
+        UBSAN_FLAGS="-fsanitize=pointer-overflow -fno-sanitize-recover=pointer-overflow"
+        CFLAGS="$CFLAGS $UBSAN_FLAGS"
+        CXXFLAGS="$CXXFLAGS $UBSAN_FLAGS"
+    fi
 fi
 
 meson $build -D$fuzzflag -Db_lundef=false