From f5b4bd9dd081091d4377289b639ab9c4a2e1a6c8 Mon Sep 17 00:00:00 2001
From: Serge Farny <serge.farny@gmail.com>
Date: Mon, 5 Aug 2024 14:32:37 +0100
Subject: [PATCH] Liquidator: fix an arithmetic error in client side health
 computation (#986)

---
 programs/mango-v4/src/health/client.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/programs/mango-v4/src/health/client.rs b/programs/mango-v4/src/health/client.rs
index 0d4d7d31eb..b82b73b022 100644
--- a/programs/mango-v4/src/health/client.rs
+++ b/programs/mango-v4/src/health/client.rs
@@ -504,7 +504,10 @@ fn scan_right_until_less_than(
         if value <= target {
             return Ok(current);
         }
-        current = current.max(I80F48::ONE) * I80F48::from(2);
+        let Some(new_current) = current.max(I80F48::ONE).checked_mul(I80F48::from(2)) else {
+           break;
+        };
+        current = new_current;
     }
     Err(error_msg!(
         "could not find amount that lead to health ratio <= 0"