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30 lines
1.4 KiB
30 lines
1.4 KiB
From 461c10112d74ab223226554f2bb73aabaef43c9a Mon Sep 17 00:00:00 2001 |
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From: Jan Synacek <jsynacek@redhat.com> |
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Date: Tue, 15 Aug 2017 13:29:51 +0200 |
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Subject: [PATCH] udev: ignore SIGCHLD from unexpected processes (#1306539) |
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RHEL-only |
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Author: grzegorz.halat@motorolasolutions.com |
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Resolves: #1306539 |
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--- |
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src/udev/udev-event.c | 6 +++++- |
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1 file changed, 5 insertions(+), 1 deletion(-) |
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diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c |
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index bc115f112d..0ba079201c 100644 |
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--- a/src/udev/udev-event.c |
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+++ b/src/udev/udev-event.c |
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@@ -610,7 +610,11 @@ static int spawn_wait(struct udev_event *event, |
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event->sigterm = true; |
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break; |
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case SIGCHLD: |
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- if (waitpid(pid, &status, WNOHANG) < 0) |
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+ if (pid != (pid_t) fdsi.ssi_pid) { |
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+ log_debug("expected SIGCHLD from '%s' ["PID_FMT"] received from unknown process ["PID_FMT"]. Ignoring", cmd, pid, fdsi.ssi_pid); |
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+ continue; |
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+ } |
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+ if (waitpid(pid, &status, WNOHANG) <= 0) |
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break; |
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if (WIFEXITED(status)) { |
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log_debug("'%s' ["PID_FMT"] exit with return code %i", cmd, pid, WEXITSTATUS(status));
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