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Merge pull request #1891 from bimbashrestha/oss

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[fuzz] Superblock fuzz issues
This commit is contained in:
Yann Collet
2019-12-10 13:17:00 -08:00
committed by GitHub
parent e839b31dc4 e1913dc87f
commit d73e2fb465
2 changed files with 71 additions and 54 deletions
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tests/fuzzer.c
+13 -1
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@@ -427,7 +427,6 @@ static int basicUnitTests(U32 const seed, double compressibility)
} }
DISPLAYLEVEL(3, "OK \n");
DISPLAYLEVEL(3, "test%3i : decompress with null dict : ", testNb++);
{ ZSTD_DCtx* const dctx = ZSTD_createDCtx(); assert(dctx != NULL);
{ size_t const r = ZSTD_decompress_usingDict(dctx,
@@ -490,6 +489,19 @@ static int basicUnitTests(U32 const seed, double compressibility)
}
DISPLAYLEVEL(3, "OK \n");
DISPLAYLEVEL(3, "test%3d: superblock enough room for checksum : ", testNb++)
{
/* This tests whether or not we leave enough room for the checksum at the end
* of the dst buffer. The bug that motivated this test was found by the
* stream_round_trip fuzzer but this crashes for the same reason and is
* far more compact than re-creating the stream_round_trip fuzzer's code path */
ZSTD_CCtx *cctx = ZSTD_createCCtx();
ZSTD_CCtx_setParameter(cctx, ZSTD_c_targetCBlockSize, 64);
assert(!ZSTD_isError(ZSTD_compress2(cctx, compressedBuffer, 1339, CNBuffer, 1278)));
ZSTD_freeCCtx(cctx);
}
DISPLAYLEVEL(3, "OK \n");
DISPLAYLEVEL(3, "test%3i : compress a NULL input with each level : ", testNb++);
{ int level = -1;
ZSTD_CCtx* cctx = ZSTD_createCCtx();