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authorYonatan Komornik <11005061+yoniko@users.noreply.github.com>2024-03-18 15:36:40 -0700
committerGitHub <noreply@github.com>2024-03-18 15:36:40 -0700
commit6a0052a409e2604bd40354b76b86272b712edd7d (patch)
tree578729221624471ca9fecc441f99b3bcb2a56257
parentcd4dba74dea8a92f9e33d72fcb5b60224bc4e6c3 (diff)
downloadzstd-6a0052a409e2604bd40354b76b86272b712edd7d.tar.gz
Fix bugs in simple decompression fuzzer (#3978)
Fixes 2 issue in `simple_decompress.c`: 1. Wrong type used for storing the results of `ZSTD_findDecompressedSize` resulting in never matching to `ZSTD_CONTENTSIZE_ERROR` or `ZSTD_CONTENTSIZE_UNKNOWN`. 2. Experimental API is used (`ZSTD_findDecompressedSize`) without defining `ZSTD_STATIC_LINKING_ONLY`.
-rw-r--r--tests/fuzz/simple_decompress.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/tests/fuzz/simple_decompress.c b/tests/fuzz/simple_decompress.c
index 0ee61902..ab4697ff 100644
--- a/tests/fuzz/simple_decompress.c
+++ b/tests/fuzz/simple_decompress.c
@@ -16,6 +16,9 @@
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
+
+#define ZSTD_STATIC_LINKING_ONLY
+
#include "fuzz_helpers.h"
#include "zstd.h"
#include "fuzz_data_producer.h"
@@ -40,7 +43,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *src, size_t size)
size_t const dSize = ZSTD_decompressDCtx(dctx, rBuf, bufSize, src, size);
if (!ZSTD_isError(dSize)) {
/* If decompression was successful, the content size from the frame header(s) should be valid. */
- size_t const expectedSize = ZSTD_findDecompressedSize(src, size);
+ unsigned long long const expectedSize = ZSTD_findDecompressedSize(src, size);
FUZZ_ASSERT(expectedSize != ZSTD_CONTENTSIZE_ERROR);
FUZZ_ASSERT(expectedSize == ZSTD_CONTENTSIZE_UNKNOWN || expectedSize == dSize);
}