You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
1.4 KiB
55 lines
1.4 KiB
From 8fd0c565b09ba449418d7d604ceba66313246152 Mon Sep 17 00:00:00 2001
|
|
From: Guanqin Miao <miaoguanqin@huawei.com>
|
|
Date: Mon, 24 Apr 2023 16:06:35 +0800
|
|
Subject: [PATCH 136/165] Fix memory leak in file Kill
|
|
|
|
When we test mdadm with asan, we found some memory leaks in Kill.c
|
|
We fix these memory leaks based on code logic.
|
|
|
|
Signed-off-by: Guanqin Miao <miaoguanqin@huawei.com>
|
|
Signed-off-by: Li Xiao Keng <lixiaokeng@huawei.com>
|
|
Acked-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
|
|
Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
|
|
---
|
|
Kill.c | 9 ++++++++-
|
|
1 file changed, 8 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/Kill.c b/Kill.c
|
|
index bfd0efdc..43c9abed 100644
|
|
--- a/Kill.c
|
|
+++ b/Kill.c
|
|
@@ -41,6 +41,7 @@ int Kill(char *dev, struct supertype *st, int force, int verbose, int noexcl)
|
|
* 4 - failed to find a superblock.
|
|
*/
|
|
|
|
+ bool free_super = false;
|
|
int fd, rv = 0;
|
|
|
|
if (force)
|
|
@@ -52,8 +53,10 @@ int Kill(char *dev, struct supertype *st, int force, int verbose, int noexcl)
|
|
dev);
|
|
return 2;
|
|
}
|
|
- if (st == NULL)
|
|
+ if (st == NULL) {
|
|
st = guess_super(fd);
|
|
+ free_super = true;
|
|
+ }
|
|
if (st == NULL || st->ss->init_super == NULL) {
|
|
if (verbose >= 0)
|
|
pr_err("Unrecognised md component device - %s\n", dev);
|
|
@@ -77,6 +80,10 @@ int Kill(char *dev, struct supertype *st, int force, int verbose, int noexcl)
|
|
rv = 0;
|
|
}
|
|
}
|
|
+ if (free_super && st) {
|
|
+ st->ss->free_super(st);
|
|
+ free(st);
|
|
+ }
|
|
close(fd);
|
|
return rv;
|
|
}
|
|
--
|
|
2.40.1
|
|
|