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Merge pull request #4201 from rorosen/seek-table-create-null-check

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prevent possible segfault when creating seek table
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Yann Collet 2024-11-26 17:59:42 -08:00 committed by GitHub
commit 82d470564d
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contrib/seekable_format/zstdseek_decompress.c
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@ -252,6 +252,8 @@ size_t ZSTD_seekable_free(ZSTD_seekable* zs)
ZSTD_seekTable* ZSTD_seekTable_create_fromSeekable(const ZSTD_seekable* zs) ZSTD_seekTable* ZSTD_seekTable_create_fromSeekable(const ZSTD_seekable* zs)
{ {
assert(zs != NULL);
if (zs->seekTable.entries == NULL) return NULL;
ZSTD_seekTable* const st = (ZSTD_seekTable*)malloc(sizeof(ZSTD_seekTable)); ZSTD_seekTable* const st = (ZSTD_seekTable*)malloc(sizeof(ZSTD_seekTable));
if (st==NULL) return NULL; if (st==NULL) return NULL;