Blame bind-9.11-rh1736762-8.patch
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From 7e844b093b0442bdc5cdc5aefd56fdc05f9be88f Mon Sep 17 00:00:00 2001
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From: Mark Andrews <marka@isc.org>
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Date: Thu, 12 Dec 2019 19:17:39 +1100
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Subject: [PATCH] acquire task lock before calling push_readyq for task->flags
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access
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(cherry picked from commit 7c94d2cd7dfaa3f04cd86ad9ed97e8366a774a4c)
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---
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lib/isc/task.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/lib/isc/task.c b/lib/isc/task.c
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index 329604a465..f9c4354bd2 100644
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--- a/lib/isc/task.c
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+++ b/lib/isc/task.c
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@@ -473,7 +473,9 @@ task_ready(isc__task_t *task) {
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XTRACE("task_ready");
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LOCK(&manager->lock);
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+ LOCK(&task->lock);
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push_readyq(manager, task);
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+ UNLOCK(&task->lock);
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#ifdef USE_WORKER_THREADS
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if (manager->mode == isc_taskmgrmode_normal || has_privilege)
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SIGNAL(&manager->work_available);
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@@ -1263,7 +1265,9 @@ dispatch(isc__taskmgr_t *manager) {
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* might even hurt rather than help.
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*/
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#ifdef USE_WORKER_THREADS
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+ LOCK(&task->lock);
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push_readyq(manager, task);
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+ UNLOCK(&task->lock);
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#else
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ENQUEUE(new_ready_tasks, task, ready_link);
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if ((task->flags & TASK_F_PRIVILEGED) != 0)
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--
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2.21.0
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