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From 51737206afaa10d902c86ec9b5ec97cf425039c2 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Michal=20Sekleta=CC=81r?= <msekleta@redhat.com>
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Date: Thu, 9 Jul 2020 18:16:44 +0200
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Subject: [PATCH] core: prevent excessive /proc/self/mountinfo parsing
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(cherry picked from commit d586f642fd90e3bb378f7b6d3e3a64a753e51756)
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Resolves: #1819868
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---
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 src/core/mount.c | 6 ++++++
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 1 file changed, 6 insertions(+)
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diff --git a/src/core/mount.c b/src/core/mount.c
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index 2746372db2..076dfd06a3 100644
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--- a/src/core/mount.c
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+++ b/src/core/mount.c
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@@ -1763,6 +1763,12 @@ static void mount_enumerate(Manager *m) {
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                         goto fail;
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                 }
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+                r = sd_event_source_set_ratelimit(m->mount_event_source, 1 * USEC_PER_SEC, 5);
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+                if (r < 0) {
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+                        log_error_errno(r, "Failed to enable rate limit for mount events: %m");
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+                        goto fail;
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+                }
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+
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                 (void) sd_event_source_set_description(m->mount_event_source, "mount-monitor-dispatch");
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         }
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