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MDEV-10214: Fix segfault when using groups in PAM user mapping plugin

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This commit is contained in:
Mario Weigel
2016-06-12 23:13:26 +12:00
parent 94b47bc5a5
commit 626a62e5cc
1 changed files with 3 additions and 2 deletions
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5
plugin/auth_pam/mapper/pam_user_map.c
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@@ -71,6 +71,7 @@ static int populate_user_groups(const char *user, gid_t **groups)
static int user_in_group(const gid_t *user_groups, int ng,const char *group) static int user_in_group(const gid_t *user_groups, int ng,const char *group)
{ {
gid_t group_id; gid_t group_id;
const gid_t *groups_end = user_groups + ng;
{ {
struct group *g= getgrnam(group); struct group *g= getgrnam(group);
@@ -79,7 +80,7 @@ static int user_in_group(const gid_t *user_groups, int ng,const char *group)
group_id= g->gr_gid; group_id= g->gr_gid;
} }
for (; user_groups < user_groups + ng; user_groups++) for (; user_groups < groups_end; user_groups++)
{ {
if (*user_groups == group_id) if (*user_groups == group_id)
return 1; return 1;
@@ -146,7 +147,7 @@ int pam_sm_authenticate(pam_handle_t *pamh, int flags,
goto ret; goto ret;
} }
} }
pam_err= PAM_SUCCESS; pam_err= PAM_AUTH_ERR;
goto ret; goto ret;
syntax_error: syntax_error: