From 8f0e75091cfcbdfbfa0f6d0e379e153ddaa268ac Mon Sep 17 00:00:00 2001

From: wuguanghao <wuguanghao3@huawei.com>

Date: Wed, 30 Jun 2021 16:27:15 +0800

Subject: [PATCH 28/46] zap_sector: fix memory leak

Content-Type: text/plain

In zap_sector(), need free buf before return,

otherwise it will cause memory leak.

Signed-off-by: Wu Guanghao <wuguanghao3@huawei.com>

Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>

Reviewed-by: Wu Bo <wubo40@huawei.com>

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

Signed-off-by: Lukas Czerner <lczerner@redhat.com>

---

 misc/mke2fs.c | 4 +++-

 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/misc/mke2fs.c b/misc/mke2fs.c

index 0184a3a8..389d0981 100644

--- a/misc/mke2fs.c

+++ b/misc/mke2fs.c

@@ -582,8 +582,10 @@ static void zap_sector(ext2_filsys fs, int sect, int nsect)

 		else {

 			magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);

 			if ((*magic == BSD_DISKMAGIC) ||

-			    (*magic == BSD_MAGICDISK))

+			    (*magic == BSD_MAGICDISK)) {

+				free(buf);

 				return;

+			}

 		}

 	}

-- 

2.35.1