mdadm/SOURCES/0098-super-ddf.c-fix-memleak-in-get_vd_num_of_subarray.patch

47 lines
1.4 KiB
Diff

From 68b90794adf8287fa534cc8f35efb09772b133d0 Mon Sep 17 00:00:00 2001
From: Wu Guanghao <wuguanghao3@huawei.com>
Date: Sat, 4 Mar 2023 00:21:35 +0800
Subject: [PATCH 098/125] super-ddf.c: fix memleak in get_vd_num_of_subarray()
sra = sysfs_read() should be free before return in
get_vd_num_of_subarray()
Signed-off-by: Wu Guanghao <wuguanghao3@huawei.com>
Acked-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
Acked-by: Coly Li <colyli@suse.de>
Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
---
super-ddf.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/super-ddf.c b/super-ddf.c
index 309812df..b86c6acd 100644
--- a/super-ddf.c
+++ b/super-ddf.c
@@ -1592,15 +1592,20 @@ static unsigned int get_vd_num_of_subarray(struct supertype *st)
sra = sysfs_read(-1, st->devnm, GET_VERSION);
if (!sra || sra->array.major_version != -1 ||
sra->array.minor_version != -2 ||
- !is_subarray(sra->text_version))
+ !is_subarray(sra->text_version)) {
+ if (sra)
+ sysfs_free(sra);
return DDF_NOTFOUND;
+ }
sub = strchr(sra->text_version + 1, '/');
if (sub != NULL)
vcnum = strtoul(sub + 1, &end, 10);
if (sub == NULL || *sub == '\0' || *end != '\0' ||
- vcnum >= be16_to_cpu(ddf->active->max_vd_entries))
+ vcnum >= be16_to_cpu(ddf->active->max_vd_entries)) {
+ sysfs_free(sra);
return DDF_NOTFOUND;
+ }
return vcnum;
}
--
2.38.1