[R-package] use safer pattern for error formatting (fixes #6212) (#6216)

848e76c3 · James Lamb · GitHub · 2ee3ec84 · 848e76c3
Unverified Commit 848e76c3 authored Nov 29, 2023 by James Lamb Committed by GitHub Nov 29, 2023
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R-package/src/lightgbm_R.cpp R-package/src/lightgbm_R.cpp +1 -1

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--- a/R-package/src/lightgbm_R.cpp
+++ b/R-package/src/lightgbm_R.cpp
@@ -40,7 +40,7 @@ void LGBM_R_save_exception_msg(const std::string &err);
  catch(std::exception& ex) { LGBM_R_save_exception_msg(ex); } \
  catch(std::string& ex) { LGBM_R_save_exception_msg(ex); } \
  catch(...) { Rf_error("unknown exception"); } \
-  Rf_error(R_errmsg_buffer); \
+  Rf_error("%s", R_errmsg_buffer); \
  return R_NilValue; /* <- won't be reached */

 #define CHECK_CALL(x) \