Fix null pointer dereference in Timer::AdjustTimers.

Fixes #5783

diff --git a/lib/base/timer.cpp b/lib/base/timer.cpp
index 63fbd669d2025902890a275ff6dad0151c89a59d..347b9186f80d30ec57ed7c1c6e09101b24ab4fe8 100644 (file)
--- a/lib/base/timer.cpp
+++ b/lib/base/timer.cpp
@@ -244,6 +244,9 @@ void Timer::AdjustTimers(double adjustment)
        for (it = idx.begin(); it != idx.end(); it++) {
                Timer::Ptr timer = it->lock();
 
+               if (!timer)
+                       continue;
+
                if (abs(now - (timer->m_Next + adjustment)) <
                    abs(now - timer->m_Next)) {
                        timer->m_Next += adjustment;