From 7e2bfaf55ea57022851c56ec703111ab2346e691 Mon Sep 17 00:00:00 2001
From: Kemeng Shi <shikemeng@huawei.com>
Date: Thu, 1 Jul 2021 15:03:32 +0800
Subject: [PATCH] etmem_scan: fix memleak in vm_idle_read

euleros inclusion
category: bugfix
bugzilla: NA

------------------------------

Struct page_idle_ctrl is alloced at beginning of vm_idle_read, but
it's not freed when vm_idle_read ends.

Fixes: bad4d8833739 ("etmem: add etmem-scan feature")
Signed-off-by: Kemeng Shi <shikemeng@huawei.com>
Reviewed-by: Jing Xiangfeng<jingxiangfeng@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 fs/proc/etmem_scan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/proc/etmem_scan.c b/fs/proc/etmem_scan.c
index 94bf125de607..2bac5ecd5316 100644
--- a/fs/proc/etmem_scan.c
+++ b/fs/proc/etmem_scan.c
@@ -753,6 +753,7 @@ static ssize_t vm_idle_read(struct file *file, char *buf,
 	ret = pic->bytes_copied;
 	*ppos = pic->next_hva;
 out_kvm:
+	kfree(pic);
 	return ret;
 
 }
-- 
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