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Fix UAF in animation end callback if callback deletes the animation (#2389)

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Removes use after free when the end callback deletes the animation as
long as `m_bRemoveEndAfterRan` is false.
This commit is contained in:
outfoxxed
2023-05-29 00:51:58 -07:00
committed by GitHub
parent 438d063ec6
commit 409ff027f8
1 changed files with 3 additions and 1 deletions
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4
src/helpers/AnimatedVariable.hpp
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@@ -268,8 +268,10 @@ class CAnimatedVariable {
// methods // methods
void onAnimationEnd() { void onAnimationEnd() {
if (m_fEndCallback) { if (m_fEndCallback) {
// loading m_bRemoveEndAfterRan before calling the callback allows the callback to delete this animation safely if it is false.
auto removeEndCallback = m_bRemoveEndAfterRan;
m_fEndCallback(this); m_fEndCallback(this);
if (m_bRemoveEndAfterRan) if (removeEndCallback)
m_fEndCallback = nullptr; // reset m_fEndCallback = nullptr; // reset
} }
} }