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authordes <des@FreeBSD.org>2010-06-22 19:56:07 +0000
committerdes <des@FreeBSD.org>2010-06-22 19:56:07 +0000
commit1cceb68541d136b076fa2956a754b7c258258b2e (patch)
tree43aa444dca62d23e9d2099152a524ed91accdc7b /lib
parentf5baec6b9c444ae2eef9cd98ba93a35991cf4f9c (diff)
downloadFreeBSD-src-1cceb68541d136b076fa2956a754b7c258258b2e.zip
FreeBSD-src-1cceb68541d136b076fa2956a754b7c258258b2e.tar.gz
merge r196650 from head (via stable/8): tty might be NULL
Approved by: re (kib@)
Diffstat (limited to 'lib')
-rw-r--r--lib/libpam/modules/pam_lastlog/pam_lastlog.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/libpam/modules/pam_lastlog/pam_lastlog.c b/lib/libpam/modules/pam_lastlog/pam_lastlog.c
index 817d1f3..9899f8d 100644
--- a/lib/libpam/modules/pam_lastlog/pam_lastlog.c
+++ b/lib/libpam/modules/pam_lastlog/pam_lastlog.c
@@ -183,6 +183,11 @@ pam_sm_close_session(pam_handle_t *pamh __unused, int flags __unused,
pam_err = pam_get_item(pamh, PAM_TTY, (const void **)&tty);
if (pam_err != PAM_SUCCESS)
goto err;
+ if (tty == NULL) {
+ PAM_LOG("No PAM_TTY");
+ pam_err = PAM_SERVICE_ERR;
+ goto err;
+ }
if (strncmp(tty, _PATH_DEV, strlen(_PATH_DEV)) == 0)
tty = (const char *)tty + strlen(_PATH_DEV);
if (*(const char *)tty == '\0')
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