fix use after free in index_lock (#546)

Signed-off-by: Alexey Chernyshov <alexey.n.chernyshov@gmail.com>
filecoin-project · Dec 3, 2021 · 5fcc3bb · 5fcc3bb
1 parent e59a5b3
commit 5fcc3bb
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/core/sector_storage/stores/impl/index_lock.cpp b/core/sector_storage/stores/impl/index_lock.cpp
@@ -66,9 +66,10 @@ namespace fc::sector_storage::stores {
     }
     sector.write = static_cast<SectorFileType>(sector.write & ~lock.write);
     --sector.refs;
+    sector.cv.notify_all();
+    sector_lock.unlock();
     if (!sector.refs) {
       sectors.erase(lock.sector);
     }
-    sector.cv.notify_all();
   }
 }  // namespace fc::sector_storage::stores