Merge pull request OSGeo#11588 from rouault/libertiff_fuzzer

fuzzers: add a fuzzer for LIBERTIFF driver

Author: rouault

fuzzers/CMakeLists.txt

@@ -124,6 +124,16 @@ build_gdal_specialized_fuzzer(gdal_sdts GDALRegister_SDTS "/vsimem/test.tar" "/v
 build_gdal_specialized_fuzzer(gdal_vrt GDALAllRegister "/vsimem/test.tar" "/vsitar//vsimem/test.tar/test.vrt")
 build_gdal_specialized_fuzzer(ers GDALRegister_ERS "/vsimem/test.tar" "/vsitar//vsimem/test.tar/test.ers")
 
+build_fuzzer(
+    NAME
+    libertiff_fuzzer
+    SOURCES
+    gdal_fuzzer.cpp
+    DEFINITIONS
+    -DREGISTER_FUNC=GDALRegister_LIBERTIFF
+    -DDRIVER_NAME="LIBERTIFF"
+)
+
 build_fuzzer(
   NAME
   gdal_filesystem_fuzzer

fuzzers/build_google_oss_fuzzers.sh

@@ -69,6 +69,8 @@ build_gdal_specialized_fuzzer()
 
 build_fuzzer gtiff_mmap $(dirname $0)/gdal_fuzzer.cpp -DREGISTER_FUNC=GDALRegister_GTiff -DGTIFF_USE_MMAP
 
+build_fuzzer libertiff $(dirname $0)/gdal_fuzzer.cpp -DREGISTER_FUNC=GDALRegister_LIBERTIFF -DDRIVER_NAME="\"LIBERTIFF\""
+
 fuzzerFiles="$(dirname $0)/*.cpp"
 for F in $fuzzerFiles; do
     if test $F != "$(dirname $0)/fuzzingengine.cpp"; then

fuzzers/gdal_fuzzer.cpp

@@ -213,7 +213,15 @@ int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len)
 #else
     const char *pszGDALFilename = GDAL_FILENAME;
 #endif
-    GDALDatasetH hDS = GDALOpen(pszGDALFilename, GA_ReadOnly);
+
+#ifdef DRIVER_NAME
+    const char *const apszAllowedDrivers[] = {DRIVER_NAME, nullptr};
+#else
+    const char *const *apszAllowedDrivers = nullptr;
+#endif
+
+    GDALDatasetH hDS = GDALOpenEx(pszGDALFilename, GDAL_OF_RASTER,
+                                  apszAllowedDrivers, nullptr, nullptr);
     if (hDS)
     {
         const int nTotalBands = GDALGetRasterCount(hDS);