iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: ieee802154: fix nl802154 del llsec key

Browse Source 
commit 37feaaf5ceb2245e474369312bb7b922ce7bce69 upstream.

This patch fixes a nullpointer dereference if NL802154_ATTR_SEC_KEY is
not set by the user. If this is the case nl802154 will return -EINVAL.

Reported-by: syzbot+ac5c11d2959a8b3c4806@syzkaller.appspotmail.com
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20210221174321.14210-1-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Aring 2021-02-21 12:43:18 -05:00 committed by Greg Kroah-Hartman
parent 5983b9de01
commit 79ba55c0e7
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
net/ieee802154/nl802154.c
View File

@ -1612,7 +1612,8 @@ static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info)
struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
struct ieee802154_llsec_key_id id;
if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
if (!info->attrs[NL802154_ATTR_SEC_KEY] ||
nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
info->attrs[NL802154_ATTR_SEC_KEY],
nl802154_key_policy, info->extack))
return -EINVAL;