Threats Tagged 'cve-2026-89516'
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Threats Tagged 'cve-2026-89516'
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A vulnerability in the Linux kernel related to the sched_ext subsystem has been resolved. The issue involves a BUG_ON triggered when a destroyed Deferred Scheduling Queue (DSQ) is accessed in process_deferred_reenq_users(). This occurs because destroy_dsq() does not flush pending deferred reenqueues (drus), leading to a race condition where the DSQ ID can become invalid between checks. The fix involves reading the DSQ ID atomically and skipping the BUG_ON if the DSQ is destroyed before the deferred reenq runs. Join the discussion | GCVE Database | 09/11/2026, 21:31:30 UTC Added: 09/12/2026, 00:43:01 UTC |
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