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Fix a bug that prevented the service name from being freed, thus 

leaking a small amount of memory for every PAM session.

While there, eliminate an unnecessary variable.


git-svn-id: svn+ssh://svn.openpam.org/svn/openpam/trunk@918 185d5e19-27fe-0310-9dcf-9bff6b9f3609
This commit is contained in:
Dag-Erling Smørgrav 2017-02-19 17:46:22 +00:00
parent 2f340d61b5
commit d9e44d146f
1 changed files with 5 additions and 6 deletions
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11
lib/libpam/pam_set_item.c
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@ -60,7 +60,7 @@ pam_set_item(pam_handle_t *pamh,
int item_type,
const void *item)
{
void **slot, *tmp;
void **slot;
size_t nsize, osize;
ENTERI(item_type);
@ -69,7 +69,7 @@ pam_set_item(pam_handle_t *pamh,
switch (item_type) {
case PAM_SERVICE:
/* set once only, by pam_start() */
if (*slot != NULL)
if (*slot != NULL && item != NULL)
RETURNC(PAM_SYSTEM_ERR);
/* fall through */
case PAM_USER:
@ -101,13 +101,12 @@ pam_set_item(pam_handle_t *pamh,
FREE(*slot);
}
if (item != NULL) {
if ((tmp = malloc(nsize)) == NULL)
if ((*slot = malloc(nsize)) == NULL)
RETURNC(PAM_BUF_ERR);
memcpy(tmp, item, nsize);
memcpy(*slot, item, nsize);
} else {
tmp = NULL;
*slot = NULL;
}
*slot = tmp;
RETURNC(PAM_SUCCESS);
}