From cca0ce62f367d03ed429bf99e41e6aca8cb7f2ac Mon Sep 17 00:00:00 2001 From: Andre Albsmeier Date: Mon, 27 May 2024 08:31:34 +0200 Subject: [PATCH] pam_xdg: pam_get_item can return NULL Fix pam_xdg as pam_get_item can return NULL, this happens when pressing control + C in xdm for example. MFC after: 1 week PR: 279268 --- lib/libpam/modules/pam_xdg/pam_xdg.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/libpam/modules/pam_xdg/pam_xdg.c b/lib/libpam/modules/pam_xdg/pam_xdg.c index 4d586a21566..2c80f0a0332 100644 --- a/lib/libpam/modules/pam_xdg/pam_xdg.c +++ b/lib/libpam/modules/pam_xdg/pam_xdg.c @@ -67,7 +67,7 @@ _pam_xdg_open(pam_handle_t *pamh, int flags __unused, /* Get user info */ rv = pam_get_item(pamh, PAM_USER, (const void **)&user); - if (rv != PAM_SUCCESS) { + if (rv != PAM_SUCCESS || user == NULL) { PAM_VERBOSE_ERROR("Can't get user information"); goto out; } @@ -221,7 +221,7 @@ _pam_xdg_close(pam_handle_t *pamh __unused, int flags __unused, /* Get user info */ rv = pam_get_item(pamh, PAM_USER, (const void **)&user); - if (rv != PAM_SUCCESS) { + if (rv != PAM_SUCCESS || user == NULL) { PAM_VERBOSE_ERROR("Can't get user information"); goto out; }