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KEYS: trusted: fix DCP blob payload length assignment

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The DCP trusted key type uses the wrong helper function to store
the blob's payload length which can lead to the wrong byte order
being used in case this would ever run on big endian architectures.

Fix by using correct helper function.

Cc: stable@vger.kernel.org # v6.10+
Fixes: 2e8a0f40a3 ("KEYS: trusted: Introduce NXP DCP-backed trusted keys")
Suggested-by: Richard Weinberger <richard@nod.at>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202405240610.fj53EK0q-lkp@intel.com/
Signed-off-by: David Gstir <david@sigma-star.at>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
This commit is contained in:
David Gstir 2024-07-17 13:28:44 +02:00 committed by Jarkko Sakkinen
parent a4a35f6cbe
commit 6486cad00a
1 changed files with 1 additions and 1 deletions
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2
security/keys/trusted-keys/trusted_dcp.c
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@ -222,7 +222,7 @@ static int trusted_dcp_seal(struct trusted_key_payload *p, char *datablob)
return ret;
}
b->payload_len = get_unaligned_le32(&p->key_len);
put_unaligned_le32(p->key_len, &b->payload_len);
p->blob_len = blen;
return 0;
}