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Dont pass zero length input to asm modules for ciphers

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The asm modules may assume an input length > 0.

Fixes: #9262

Signed-off-by: Patrick Steuer <patrick.steuer@de.ibm.com>

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10323)
This commit is contained in:
Patrick Steuer 2019-11-01 14:58:36 +01:00
parent 92de469fbd
commit 51356a066e
1 changed files with 2 additions and 0 deletions
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2
providers/common/ciphers/cipher_common.c
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@ -207,6 +207,8 @@ int cipher_generic_block_update(void *vctx, unsigned char *out, size_t *outl,
ERR_raise(ERR_LIB_PROV, PROV_R_OUTPUT_BUFFER_TOO_SMALL);
return 0;
}
}
if (nextblocks > 0) {
if (!ctx->hw->cipher(ctx, out, in, nextblocks)) {
ERR_raise(ERR_LIB_PROV, PROV_R_CIPHER_OPERATION_FAILED);
return 0;