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ccm: Re-ordered len checks in mbedtls_ccm_finish.

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Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
This commit is contained in:
Minos Galanakis
2026-03-12 10:08:46 +00:00
parent 66d57b0d7b
commit 8b50733a73
1 changed files with 4 additions and 4 deletions
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8
library/ccm.c
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@@ -484,6 +484,10 @@ int mbedtls_ccm_finish(mbedtls_ccm_context *ctx,
return MBEDTLS_ERR_CCM_BAD_INPUT;
}
if (!(ctx->state & CCM_STATE__LENGTHS_SET)) {
return MBEDTLS_ERR_CCM_BAD_INPUT;
}
if (ctx->add_len > 0 && !(ctx->state & CCM_STATE__AUTH_DATA_FINISHED)) {
return MBEDTLS_ERR_CCM_BAD_INPUT;
}
@@ -492,10 +496,6 @@ int mbedtls_ccm_finish(mbedtls_ccm_context *ctx,
return MBEDTLS_ERR_CCM_BAD_INPUT;
}
if (!(ctx->state & CCM_STATE__LENGTHS_SET)) {
return MBEDTLS_ERR_CCM_BAD_INPUT;
}
if (tag_len != ctx->tag_len) {
return MBEDTLS_ERR_CCM_BAD_INPUT;
}