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Built-in lms driver: Added input guard

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Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
This commit is contained in:
Minos Galanakis 2025-06-02 14:17:38 +01:00
parent d9c141749b
commit 548e2dbf65
1 changed files with 4 additions and 0 deletions
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4
library/lms.c
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@ -242,6 +242,10 @@ int mbedtls_lms_import_public_key(mbedtls_lms_public_t *ctx,
mbedtls_lms_algorithm_type_t type;
mbedtls_lmots_algorithm_type_t otstype;
if (key_size < 4) {
return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;
}
type = (mbedtls_lms_algorithm_type_t) MBEDTLS_GET_UINT32_BE(key, PUBLIC_KEY_TYPE_OFFSET);
if (type != MBEDTLS_LMS_SHA256_M32_H10) {
return MBEDTLS_ERR_LMS_BAD_INPUT_DATA;