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mm: fix realloc overwrite memcpy when use a new block

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Signed-off-by: ligd <liguiding1@xiaomi.com>
This commit is contained in:
ligd 2021-10-26 16:10:39 +08:00 committed by Xiang Xiao
parent b1879d5d24
commit 3615592e82
1 changed files with 1 additions and 1 deletions
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mm/mm_heap/mm_realloc.c
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@ -355,7 +355,7 @@ FAR void *mm_realloc(FAR struct mm_heap_s *heap, FAR void *oldmem,
newmem = (FAR void *)mm_malloc(heap, size); newmem = (FAR void *)mm_malloc(heap, size);
if (newmem) if (newmem)
{ {
memcpy(newmem, oldmem, oldsize); memcpy(newmem, oldmem, oldsize - SIZEOF_MM_ALLOCNODE);
mm_free(heap, oldmem); mm_free(heap, oldmem);
} }