Sparse array limit testing: reduce the range limit for the number of bits

in a sparse array pointer block.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8221)

diff --git a/crypto/sparse_array.c b/crypto/sparse_array.c
index 9255f9da3f4bfa29d042c5c93a6787c178c54ee3..8c9efed0ebf83cd2412eaf9d2296a06a6d471630 100644 (file)
--- a/crypto/sparse_array.c
+++ b/crypto/sparse_array.c
@@ -37,7 +37,7 @@
 # else
 #  define OPENSSL_SA_BLOCK_BITS           12
 # endif
-#elif OPENSSL_SA_BLOCK_BITS < 2 || OPENSSL_SA_BLOCK_BITS > BN_BITS2
+#elif OPENSSL_SA_BLOCK_BITS < 2 || OPENSSL_SA_BLOCK_BITS > (BN_BITS2 - 1)
 # error OPENSSL_SA_BLOCK_BITS is out of range
 #endif