CID 1402518 (#1 of 1): String not null terminated

docs/changes.txt

@@ -47,6 +47,7 @@
 - Fixed clEnqueueNDRangeKernel(): CL_UNKNOWN_ERROR caused by an invalid work-item count during weak-hash-check
 - Fixed nvapi datatype definition for NvS32 and NvU32
 - Fixed WPA/WPA2 cracking in case eapol frame is >= 248 byte
+- Fixed string not null terminated inside workaround for checking drm driver path
 
 ##
 ## Technical

src/opencl.c

@@ -77,7 +77,11 @@ static int ocl_check_dri (MAYBE_UNUSED hashcat_ctx_t *hashcat_ctx)
 
   char buf[HCBUFSIZ_TINY];
 
-  if (readlink (drm_card0_driver_path, buf, HCBUFSIZ_TINY) == -1) return 0;
+  const ssize_t len = readlink (drm_card0_driver_path, buf, HCBUFSIZ_TINY - 1);
+
+  if (len == -1) return 0;
+
+  buf[len] = 0;
 
   if (strstr (buf, "amdgpu") == NULL) return 0;