Commit 6bfeb4fe authored Jun 27, 2025 by Robert Lubos Committed by Fabio Baltieri Jul 24, 2025

net: lwm2m: senml_cbor: Verify data len before calling memcpy

Check if there actually is data to copy before calling memcpy() to
prevent potentially calling memcpy() with NULL value pointer.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>

parent 779d8521

subsys/net/lib/lwm2m/lwm2m_rw_senml_cbor.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -644,8 +644,9 @@ static int get_string(struct lwm2m_input_context in, uint8_t buf, size_t bufle
		}

		len = MIN(buflen-1, fd->current->record_union.union_vs.len);

		if (len > 0) {
		memcpy(buf, fd->current->record_union.union_vs.value, len);
		}
		buf[len] = '\0';

		fd->current = NULL;