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Jake Dallimore
59b5858da2
MDL-73736 core_auth: Fix concurrency issue in login_attempt_failed()
This patch wraps the login_failed_count logic in a resource lock and forces a user preferences cache reload. Each thread must wait for the lock and must fetch the current count before incrementing it. This ensures that login_failed_count is correct across threads and that the lockout threshold is correctly honoured. Co-Authored-By: Sujith Haridasan <sujith@moodle.com>
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