Fix buflen size in sc_pkcs15_compute_signature

OpenSC · Nov 19, 2021 · 799f178 · 799f178
1 parent 6afb795
commit 799f178
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/libopensc/pkcs15-sec.c b/src/libopensc/pkcs15-sec.c
@@ -615,7 +615,7 @@ int sc_pkcs15_compute_signature(struct sc_pkcs15_card *p15card,
  if (outlen < modlen)
  LOG_FUNC_RETURN(ctx, SC_ERROR_BUFFER_TOO_SMALL);
 
- buflen = inlen + 256;
+ buflen = inlen + modlen;
  buf = sc_mem_secure_alloc(buflen);
  if (buf == NULL)
  LOG_FUNC_RETURN(ctx, SC_ERROR_OUT_OF_MEMORY);