--- /dev/null
+diff --git a/ldiskfs/kernel_patches/patches/ext4-failed-mount-b23368.patch b/ldiskfs/kernel_patches/patches/ext4-failed-mount-b23368.patch
+new file mode 100644
+index 0000000..9de80c0
+--- /dev/null
++++ b/ldiskfs/kernel_patches/patches/ext4-failed-mount-b23368.patch
+@@ -0,0 +1,12 @@
++Index: linux-stage/fs/ext4/super.c
++===================================================================
++--- linux-stage.orig/fs/ext4/super.c
+++++ linux-stage/fs/ext4/super.c
++@@ -3466,7 +3466,6 @@ failed_mount:
++ brelse(bh);
++ out_fail:
++ sb->s_fs_info = NULL;
++- kfree(&sbi->s_blockgroup_lock);
++ kfree(sbi);
++ lock_kernel();
++ return ret;
+