2.37.2-3: add pam_end() to login and su

Resolves: #2037212

0005-Complete-Linux-PAM-compliance-for-forked-child-in-su.patch

@@ -0,0 +1,53 @@
+From 962d3779ef1502ed234baea309cd75b2c1e2353a Mon Sep 17 00:00:00 2001
+From: "Andrew G. Morgan" <morgan@kernel.org>
+Date: Sat, 27 Nov 2021 21:00:22 -0800
+Subject: [PATCH] Complete Linux-PAM compliance for forked child in su and
+ login.
+
+As documented here:
+
+http://www.linux-pam.org/Linux-PAM-html/adg-interface-by-app-expected.html#adg-pam_end
+
+The child that is about to exec*() the user shell is supposed to pam_end()
+with PAM_DATA_SILENT. This gives the modules a last chance to do a minor
+cleanup of the module state before the user's shell is launched.
+
+Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=2037212
+Upstream: http://github.com/util-linux/util-linux/commit/4660286e9cdff6d95b49295674b96f83af10ea36
+Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
+---
+ login-utils/login.c     | 3 +++
+ login-utils/su-common.c | 3 +++
+ 2 files changed, 6 insertions(+)
+
+diff --git a/login-utils/login.c b/login-utils/login.c
+index 3657f04cd..c62e91e94 100644
+--- a/login-utils/login.c
++++ b/login-utils/login.c
+@@ -1521,6 +1521,9 @@ int main(int argc, char **argv)
+ 
+ 	child_argv[child_argc++] = NULL;
+ 
++	/* http://www.linux-pam.org/Linux-PAM-html/adg-interface-by-app-expected.html#adg-pam_end */
++	(void) pam_end(cxt.pamh, PAM_SUCCESS|PAM_DATA_SILENT);
++
+ 	execvp(child_argv[0], child_argv + 1);
+ 
+ 	if (!strcmp(child_argv[0], "/bin/sh"))
+diff --git a/login-utils/su-common.c b/login-utils/su-common.c
+index afd0ea8ad..7d4826bbc 100644
+--- a/login-utils/su-common.c
++++ b/login-utils/su-common.c
+@@ -1231,6 +1231,9 @@ int su_main(int argc, char **argv, int mode)
+ 	if (su->simulate_login && chdir(su->pwd->pw_dir) != 0)
+ 		warn(_("warning: cannot change directory to %s"), su->pwd->pw_dir);
+ 
++	/* http://www.linux-pam.org/Linux-PAM-html/adg-interface-by-app-expected.html#adg-pam_end */
++	(void) pam_end(su->pamh, PAM_SUCCESS|PAM_DATA_SILENT);
++
+ 	if (shell)
+ 		run_shell(su, shell, command, argv + optind, max(0, argc - optind));
+ 
+-- 
+2.31.1
+

util-linux.spec

@@ -2,7 +2,7 @@
 Summary: A collection of basic system utilities
 Name: util-linux
 Version: 2.37.2
-Release: 2%{?dist}
+Release: 3%{?dist}
 License: GPLv2 and GPLv2+ and LGPLv2+ and BSD with advertising and Public Domain
 URL: http://en.wikipedia.org/wiki/Util-linux
 
@@ -88,8 +88,6 @@ Requires: libsmartcols = %{version}-%{release}
 Requires: libfdisk = %{version}-%{release}
 Requires: util-linux-core = %{version}-%{release}
 
-### Ready for upstream?
-###
 # 151635 - makeing /var/log/lastlog
 Patch0: 0000-login-lastlog-create.patch
 # Add `/run/motd.d` to the hardcoded MOTD_FILE
@@ -99,6 +97,8 @@ Patch1: 0001-login-default-motd-file.patch
 Patch2: 0002-tests-make-.-run.sh-more-robust.patch
 Patch3: 0003-tests-make-mount-fstab-all-more-robust.patch
 Patch4: 0004-tests-make-eject-umount-tests-more-robust.patch
+# 2037212 - Complete Linux-PAM compliance for forked child in su and login
+Patch5: 0005-Complete-Linux-PAM-compliance-for-forked-child-in-su.patch
 
 
 %description
@@ -949,6 +949,9 @@ fi
 %{_libdir}/python*/site-packages/libmount/
 
 %changelog
+* Thu Jan 06 2022 Karel Zak <kzak@redhat.com> 2.37.2-3
+- fix #2037212 - Complete Linux-PAM compliance for forked child in su and login
+
 * Mon Aug 23 2021 Karel Zak <kzak@redhat.com> - 2.37.2-2
 - cleanup previous rebase (fix #1969348)
 - integrate upstream tests to CI