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nis: nis_local_group may read from __nisgroup[-1] (bug 28075) 

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Florian Weimer 2021-07-12 07:58:07 +02:00
parent 83b7008e11
commit 70099c7763
1 changed files with 1 additions and 0 deletions
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nis/nis_local_names.c
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@ -31,6 +31,7 @@ nis_local_group (void)
char *cptr;
if (__nisgroup[0] == '\0'
&& (cptr = getenv ("NIS_GROUP")) != NULL
&& cptr[0] != '\0'
&& strlen (cptr) < NIS_MAXNAMELEN)
{
char *cp = stpcpy (__nisgroup, cptr);