diff --git a/net/core/filter.c b/net/core/filter.c
index 7fbee7570d0c..b7ac145b68b1 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -4330,7 +4330,8 @@ BPF_CALL_4(bpf_xdp_store_bytes, struct xdp_buff *, xdp, u32, offset,
 	if (!ptr)
 		bpf_xdp_copy_buf(xdp, offset, buf, len, true);
 	else
-		memcpy(ptr, buf, len);
+		/* through a dynptr the source may be an overlapping slice */
+		memmove(ptr, buf, len);
 
 	return 0;
 }