MSVSphere Packaging Team
1 year ago
parent
e690628dbb
commit
d4eefd8ce9
@ -0,0 +1,32 @@
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From 1ac7d4d5ee3bb00a3e7d310f7b8803812940e0a4 Mon Sep 17 00:00:00 2001
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From: Yu Watanabe <watanabe.yu+github@gmail.com>
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Date: Thu, 14 Feb 2019 10:59:13 +0900
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Subject: [PATCH] login: add a missing error check for session_set_leader()
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session_set_leader() may fail. If it fails, then manager_start_scope()
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will trigger assertion.
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This may be related to RHBZ#1663704.
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(cherry picked from commit fe3ab8458b9c0ead4b3e14ac25b342d8c34376fe)
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Related: #2223602
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---
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src/login/logind-dbus.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
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index 81aacb4eed..5edcf4e43f 100644
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--- a/src/login/logind-dbus.c
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+++ b/src/login/logind-dbus.c
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@@ -784,7 +784,9 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus
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goto fail;
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session_set_user(session, user);
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- session_set_leader(session, leader);
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+ r = session_set_leader(session, leader);
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+ if (r < 0)
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+ goto fail;
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session->type = t;
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session->class = c;
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@ -0,0 +1,77 @@
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From 33c66376740d069502ae807d0fa582865cddc359 Mon Sep 17 00:00:00 2001
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From: Michal Sekletar <msekleta@redhat.com>
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Date: Wed, 5 Jul 2023 15:27:38 +0200
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Subject: [PATCH] logind: reset session leader if we know for a fact that it is
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gone
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rhel-only
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Related: #2223602
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---
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src/login/logind-dbus.c | 3 +++
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src/login/logind-session.c | 18 ++++++++++++++++++
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src/login/logind-session.h | 1 +
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3 files changed, 22 insertions(+)
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diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
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index 5edcf4e43f..dbac406035 100644
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--- a/src/login/logind-dbus.c
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+++ b/src/login/logind-dbus.c
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@@ -3169,6 +3169,9 @@ int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *err
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session->scope_job = mfree(session->scope_job);
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(void) session_jobs_reply(session, unit, result);
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+ /* Scope job is done so leader should be gone as well. */
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+ session_invalidate_leader(session);
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+
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session_save(session);
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user_save(session->user);
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}
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diff --git a/src/login/logind-session.c b/src/login/logind-session.c
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index 916202a65a..c143202d0b 100644
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--- a/src/login/logind-session.c
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+++ b/src/login/logind-session.c
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@@ -179,6 +179,23 @@ int session_set_leader(Session *s, pid_t pid) {
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return 1;
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}
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+int session_invalidate_leader(Session *s) {
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+ assert(s);
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+
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+ if (s->leader <= 0)
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+ return 0;
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+
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+ if (pid_is_alive(s->leader))
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+ return 0;
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+
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+ (void) hashmap_remove_value(s->manager->sessions_by_leader, PID_TO_PTR(s->leader), s);
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+ s->leader = 0;
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+
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+ (void) session_save(s);
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+
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+ return 1;
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+}
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+
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static void session_save_devices(Session *s, FILE *f) {
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SessionDevice *sd;
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Iterator i;
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@@ -1096,6 +1113,7 @@ static int session_dispatch_fifo(sd_event_source *es, int fd, uint32_t revents,
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/* EOF on the FIFO means the session died abnormally. */
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session_remove_fifo(s);
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+ session_invalidate_leader(s);
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session_stop(s, false);
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return 1;
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diff --git a/src/login/logind-session.h b/src/login/logind-session.h
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index 6678441bb9..0557696761 100644
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--- a/src/login/logind-session.h
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+++ b/src/login/logind-session.h
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@@ -127,6 +127,7 @@ DEFINE_TRIVIAL_CLEANUP_FUNC(Session *, session_free);
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void session_set_user(Session *s, User *u);
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int session_set_leader(Session *s, pid_t pid);
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+int session_invalidate_leader(Session *s);
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bool session_may_gc(Session *s, bool drop_not_started);
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void session_add_to_gc_queue(Session *s);
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int session_activate(Session *s);
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