From ed06c06dcbccdc08a049bb659b6413be527118f3 Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Wed, 20 Sep 2023 23:21:10 +0300
Subject: [PATCH] [NTOS:CM] Fix lock leak

Triggered by low available pool memory during kmtest ExPools.
---
 ntoskrnl/config/cmalloc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ntoskrnl/config/cmalloc.c b/ntoskrnl/config/cmalloc.c
index eda161da97e..7d44ff82135 100644
--- a/ntoskrnl/config/cmalloc.c
+++ b/ntoskrnl/config/cmalloc.c
@@ -176,6 +176,9 @@ SearchKcbList:
             /* Now go back and search the list */
             goto SearchKcbList;
         }
+
+        /* Release the allocation lock */
+        KeReleaseGuardedMutex(&CmpAllocBucketLock);
     }
 
     /* Allocate a KCB only */