Fix segfault in sp_disabled_functions.c

There was an off-by-one in `should_disable`, effectively smashing the last byte of the stack canary. This was discovered while building the package for Alpine Linux. Kudos to their hardened toolchain!

1 files changed, 1 insertions, 1 deletions

diff --git a/src/sp_disabled_functions.c b/src/sp_disabled_functions.c
index 0b1cc91..44a215c 100644
--- a/src/sp_disabled_functions.c
+++ b/src/sp_disabled_functions.c
@@ -102,7 +102,7 @@ static bool is_local_var_matching(zend_execute_data *execute_data, const sp_disa
 }
 
 bool should_disable(zend_execute_data* execute_data) {
-  char current_file_hash[SHA256_SIZE * 2] = {0};
+  char current_file_hash[SHA256_SIZE * 2 + 1] = {0};
   const char* current_filename = zend_get_executed_filename(TSRMLS_C);
   const sp_node_t* config =
       SNUFFLEUPAGUS_G(config).config_disabled_functions->disabled_functions;