Merge pull request #64 from aave/fix/mpsc0x/min-ts-susde

fix: using the min of USDT and sUSDe timestamps

Author: mpsc0x

aave-core/aave-math/sources/math_utils.move

@@ -153,6 +153,16 @@ module aave_math::math_utils {
         (numerator + denominator - 1) / denominator
     }
 
+    /// @notice Finds the minimum of two u256 values
+    /// @dev This function returns the smaller of the two provided u256 values
+    /// @param a The first value
+    /// @param b The second value
+    /// @return The result of the minimum value between a and b
+    public fun min(a: u256, b: u256): u256 {
+        if (a <= b) { a }
+        else { b }
+    }
+
     /// @dev Returns the seconds per year value
     /// @return Seconds per year constant
     public fun get_seconds_per_year(): u256 {

aave-core/aave-oracle/sources/oracle.move

@@ -310,10 +310,14 @@ module aave_oracle::oracle {
                 let underlying_asset_price = assets_prices[0];
                 let asset_base_ratio = assets_prices[1];
                 let underlying_asset_timestamp = assets_timestamps[0];
+                let asset_base_timestamp = assets_timestamps[1];
                 let (underlying_asset_capped_price, _) = get_capped_susde_price(
                     underlying_asset_price, asset_base_ratio, &cap_info
                 );
-                (underlying_asset_capped_price, underlying_asset_timestamp)
+                (
+                    underlying_asset_capped_price,
+                    math_utils::min(underlying_asset_timestamp, asset_base_timestamp)
+                )
             },
             AdapterType::STABLE => {
                 let (underlying_asset_price, underlying_asset_timestamp) = get_asset_price_internal(