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patch 9.1.1680: MS-Windows: possible buffer-under run in if_cscope

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Problem:  MS-Windows: possible buffer-under run in if_cscope
          cs_pathcomponents() (Murali Aniruddhan)
Solution: Fix the loop and do not decrement the pointer twice.

closes: #18091

Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Christian Brabandt 2025-08-23 18:11:28 +02:00
parent ba9551d131
commit 191d77872d
No known key found for this signature in database
GPG Key ID: F3F92DA383FDDE09
2 changed files with 11 additions and 3 deletions
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12
src/if_cscope.c
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@ -1940,12 +1940,18 @@ cs_pathcomponents(char *path)
s = path + strlen(path) - 1;
for (i = 0; i < p_cspc; ++i)
while (s > path && *--s != '/'
{
while (s > path)
{
s--;
if (*s == '/'
#ifdef MSWIN
&& *--s != '\\'
|| *s == '\\'
#endif
)
;
break;
}
}
if ((s > path && *s == '/')
#ifdef MSWIN
|| (s > path && *s == '\\')

2
src/version.c
View File

@ -724,6 +724,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1680,
/**/
1679,
/**/