bigz/add-validate_perp_market-in-update-max-imbalances (#667)

* bigz/add-validate_perp_market-in-update-max-imbalances * update changelog
drift-labs · Oct 26, 2023 · a7f352b · a7f352b
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - program: add positive perp funding rate offset ([#576](https://github.com/drift-labs/protocol-v2/pull/576/files))
 
 ### Fixes
+- program: add validation check in update max imbalances ([#667](https://github.com/drift-labs/protocol-v2/pull/667))
 
 ### Breaking
 

diff --git a/programs/drift/src/instructions/admin.rs b/programs/drift/src/instructions/admin.rs
@@ -1424,6 +1424,9 @@ pub fn handle_update_perp_market_max_imbalances(
     perp_market.unrealized_pnl_max_imbalance = unrealized_max_imbalance;
     perp_market.insurance_claim.quote_max_insurance = quote_max_insurance;
 
+    // ensure altered max_revenue_withdraw_per_period doesn't break invariant check
+    crate::validation::perp_market::validate_perp_market(perp_market)?;
+
     Ok(())
 }