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tpm: use memmove() for overlapping buffers

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

Fixes: 4c57ec76b7 ("tpm: Implement state command for Cr50")
Addresses-Coverity-ID: 356664 Overlapping buffer in memory copy
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Heinrich Schuchardt 2024-11-02 11:27:37 +01:00 committed by Ilias Apalodimas
parent f39199e809
commit 6c717d952d
1 changed files with 1 additions and 1 deletions
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2
lib/tpm-v2.c
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@ -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;
}