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diff src/evalfunc.c @ 27453:c7f614c9ceb3 v8.2.4255

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patch 8.2.4255: theoretical computation overflow Commit: https://github.com/vim/vim/commit/d5cec1f1f055316c353cfa15ad8d5eb0952d50a0 Author: =?UTF-8?q?Dundar=20G=C3=B6c?= <gocdundar@gmail.com> Date: Sat Jan 29 15:19:23 2022 +0000 patch 8.2.4255: theoretical computation overflow Problem: Theoretical computation overflow. Solution: Perform multiplication in a wider type. (closes https://github.com/vim/vim/issues/9657)
author Bram Moolenaar <Bram@vim.org>
date Sat, 29 Jan 2022 16:30:03 +0100
parents 4050f0554902
children 4c16acb2525f
line wrap: on
line diff
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -7327,7 +7327,7 @@ max_min(typval_T *argvars, typval_T *ret
 		if ((l->lv_u.nonmat.lv_stride > 0) ^ domax)
 		    n = l->lv_u.nonmat.lv_start;
 		else
-		    n = l->lv_u.nonmat.lv_start + (l->lv_len - 1)
+		    n = l->lv_u.nonmat.lv_start + ((varnumber_T)l->lv_len - 1)
 						    * l->lv_u.nonmat.lv_stride;
 	    }
 	    else