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-rw-r--r--mm/slab_common.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 897c3a446b04..4aedb8455352 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -1136,6 +1136,9 @@ static __always_inline void *__do_krealloc(const void *p, size_t new_size,
void *ret;
size_t ks;
+ if (likely(!ZERO_OR_NULL_PTR(p)) && !kasan_check_byte(p))
+ return NULL;
+
ks = ksize(p);
if (ks >= new_size) {