[PATCH 1/1] tpm: use memmove() for overlapping buffers

[Heinrich Schuchardt]

The behavior of memcpy() for overlapping buffers is undefined.

Fixes: 4c57ec76b725 ("tpm: Implement state command for Cr50")
Addresses-Coverity-ID: 356664 Overlapping buffer in memory copy
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
---
 lib/tpm-v2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/tpm-v2.c b/lib/tpm-v2.c
index 59e6cbafafa..ad2b5ab0c32 100644
--- a/lib/tpm-v2.c
+++ b/lib/tpm-v2.c
@@ -821,7 +821,7 @@ u32 tpm2_report_state(struct udevice *dev, uint vendor_cmd, uint vendor_subcmd,
 	if (*recv_size < 12)
 		return -ENODATA;
 	*recv_size -= 12;
-	memcpy(recvbuf, recvbuf + 12, *recv_size);
+	memmove(recvbuf, recvbuf + 12, *recv_size);
 
 	return 0;
 }
-- 
2.45.2