From dc3e079395816ce251c4794992f1816a61c1215d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michal=20Sekleta=CC=81r?= Date: Thu, 9 Jul 2020 18:16:44 +0200 Subject: [PATCH 20/20] core: prevent excessive /proc/self/mountinfo parsing (cherry picked from commit d586f642fd90e3bb378f7b6d3e3a64a753e51756) Resolves: #1819868 [commit 51737206afaa10d902c86ec9b5ec97cf425039c2 from https://github.com/systemd-rhel/rhel-8/] Signed-off-by: Li Zhou --- src/core/mount.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/core/mount.c b/src/core/mount.c index c7aed23..48427b7 100644 --- a/src/core/mount.c +++ b/src/core/mount.c @@ -1692,6 +1692,12 @@ static int mount_enumerate(Manager *m) { r = sd_event_source_set_priority(m->mount_utab_event_source, -10); if (r < 0) goto fail; + + r = sd_event_source_set_ratelimit(m->mount_event_source, 1 * USEC_PER_SEC, 5); + if (r < 0) { + log_error_errno(r, "Failed to enable rate limit for mount events: %m"); + goto fail; + } } r = mount_load_proc_self_mountinfo(m, false); -- 2.17.1