Merge pull request #15873 from evverx/pointer-overflow-oss-fuzz

oss-fuzz: turn on the pointer-overflow check

docs/CODE_QUALITY.md

@@ -71,5 +71,8 @@ available functionality:
     See [Testing systemd using sanitizers](https://systemd.io/TESTING_WITH_SANITIZERS)
     for more information.
 
+16. Fossies provides [source code misspelling reports](https://fossies.org/features.html#codespell).
+    The systemd report can be found [here](https://fossies.org/linux/test/systemd-master.tar.gz/codespell.html).
+
 Access to Coverity and oss-fuzz reports is limited. Please reach out to the
 maintainers if you need access.

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