OSV-2020-510 UNKNOWN READ in ot::Timer::GetFireTime

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13390 Crash type: UNKNOWN READ Crash state: ot::Timer::GetFireTime ot::Timer::DoesFireBefore ot::TimerScheduler::Add...

OSV-2020-369 UNKNOWN READ in ot::TimerScheduler::Remove

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=13383 Crash type: UNKNOWN READ Crash state: ot::TimerScheduler::Remove ot::Mle::Mle::Stop otThreadSetEnabled...