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commit    0ba09cc026985536586b7fd58ceddee16ea739d7
Author:   Michael Meskes <meskes@postgresql.org>
Date:     Thu Apr 11 18:56:17 2019 +0000
First released in: 12.0, 9.4.22, 9.5.17, 9.6.13, 10.8, 11.3

    Fix off-by-one check that can lead to a memory overflow in ecpg.
    
    Patch by Liu Huailing <liuhuailing@cn.fujitsu.com>


 src/interfaces/ecpg/preproc/pgc.l | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/interfaces/ecpg/preproc/pgc.l b/src/interfaces/ecpg/preproc/pgc.l
index 56682067aff..4a63da7084b 100644
--- a/src/interfaces/ecpg/preproc/pgc.l
+++ b/src/interfaces/ecpg/preproc/pgc.l
@@ -1414,7 +1414,7 @@ parse_include(void)
 
 		for (ip = include_paths; yyin == NULL && ip != NULL; ip = ip->next)
 		{
-			if (strlen(ip->path) + strlen(yytext) + 3 > MAXPGPATH)
+			if (strlen(ip->path) + strlen(yytext) + 4 > MAXPGPATH)
 			{
 				fprintf(stderr, _("Error: include path \"%s/%s\" is too long on line %d, skipping\n"), ip->path, yytext, yylineno);
 				continue;


[parent: 5db85688a58c]