diff options
| author | Alexander Aring <aahringo@redhat.com> | 2023-02-16 23:25:04 -0500 |
|---|---|---|
| committer | Stefan Schmidt <stefan@datenfreihafen.org> | 2023-02-18 16:21:49 +0100 |
| commit | 845d63c86fea02d5acb991ac8acb5bf240e6b793 (patch) | |
| tree | 95e633fd344d57118f7d4011eee0252080d71d9d | |
| parent | de5ca4c3852f896cacac2bf259597aab5e17d9e3 (diff) | |
| download | wpan-master.tar.gz | |
This patch fixes a buffer overflow access of skb->data if
ieee802154_hdr_peek_addrs() fails.
Reported-by: lianhui tang <bluetlh@gmail.com>
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20230217042504.3303396-1-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
| -rw-r--r-- | drivers/net/ieee802154/ca8210.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c index e1a569b99e4a6a..0b0c6c0764fe9c 100644 --- a/drivers/net/ieee802154/ca8210.c +++ b/drivers/net/ieee802154/ca8210.c @@ -1913,6 +1913,8 @@ static int ca8210_skb_tx( * packet */ mac_len = ieee802154_hdr_peek_addrs(skb, &header); + if (mac_len < 0) + return mac_len; secspec.security_level = header.sec.level; secspec.key_id_mode = header.sec.key_id_mode; |