mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-04 16:15:11 +00:00
Code Issues Releases Wiki Activity

ALSA: hda: fix potential memleak in 'add_widget_node'

Browse source 
commit 9a5523f72b upstream.

As 'kobject_add' may allocated memory for 'kobject->name' when return error.
And in this function, if call 'kobject_add' failed didn't free kobject.
So call 'kobject_put' to recycling resources.

Signed-off-by: Ye Bin <yebin10@huawei.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221110144539.2989354-1-yebin@huaweicloud.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ye Bin 2022-11-10 22:45:39 +08:00 committed by Greg Kroah-Hartman
parent bfa3a66a8e
commit 90b7d055e2
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
sound/hda/hdac_sysfs.c
View file

@ -346,8 +346,10 @@ static int add_widget_node(struct kobject *parent, hda_nid_t nid,
return -ENOMEM;
kobject_init(kobj, &widget_ktype);
err = kobject_add(kobj, parent, "%02x", nid);
if (err < 0)
if (err < 0) {
kobject_put(kobj);
return err;
}
err = sysfs_create_group(kobj, group);
if (err < 0) {
kobject_put(kobj);