35 lines
1.4 KiB
Diff
35 lines
1.4 KiB
Diff
From 05c29b1e58784c87ecb4ae7b56425af786e1cd05 Mon Sep 17 00:00:00 2001
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From: Daan De Meyer <daan.j.demeyer@gmail.com>
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Date: Tue, 30 Jul 2024 11:53:32 +0200
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Subject: [PATCH] cgroup-util: Ignore kernel threads in cg_kill_items()
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Similar to the implementation of cgroup.kill in the kernel, let's
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skip kernel threads in cg_kill_items() as trying to kill kernel
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threads as an unprivileged process will fail with EPERM and doesn't
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do anything when running privileged.
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(cherry picked from commit 0fbb569de1dcc06118dba006cf7a40caf6cd94d0)
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Resolves: RHEL-55746
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---
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src/basic/cgroup-util.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/src/basic/cgroup-util.c b/src/basic/cgroup-util.c
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index 553ee6075a..1fc83a656a 100644
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--- a/src/basic/cgroup-util.c
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+++ b/src/basic/cgroup-util.c
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@@ -369,6 +369,12 @@ static int cg_kill_items(
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if (set_get(s, PID_TO_PTR(pidref.pid)) == PID_TO_PTR(pidref.pid))
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continue;
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+ /* Ignore kernel threads to mimick the behavior of cgroup.kill. */
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+ if (pidref_is_kernel_thread(&pidref) > 0) {
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+ log_debug("Ignoring kernel thread with pid " PID_FMT " in cgroup '%s'", pidref.pid, path);
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+ continue;
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+ }
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+
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if (log_kill)
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ret_log_kill = log_kill(&pidref, sig, userdata);
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