mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Samuel Susla
60c15073bf
Summary:
Changelog: [internal]
Repro steps:
1. Go to fbsource/fbobjc.
2. Run following focus command P124860753.
3. Enable Address Sanitizer in Xcode.
3. Run the app from Xcode.
5. Make sure `react_fabric.enable_marketplace_home_ios` and `react_fabric.enabled_state_reconciliation_ios` Mobile Config flags are set to true.
6. Navigate to Marketplace Home and observe use of freed memory exception. You have to wait until second page of marketplace home feed is loaded.
{F228880980}
# Root cause
`ChangedShadowNodePairs` being a vector of pairs of references.
Those `shared_ptr` do not outlive the the run of `reconcileStateWithTree` (that's what I originally thought when I made them references).
This was introduced in D19814500.
Reviewed By: JoshuaGross
Differential Revision: D19977784
fbshipit-source-id: 8c4a381137baa08a6af9d3c1cb295fe6c2b2bf95