diff options
| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2025-05-29 14:44:06 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-19 15:32:16 +0200 |
| commit | 2c32fc56c05aa69439fdfd5e0b25f57e2a158627 (patch) | |
| tree | 8c33830d0f7e35cca0845c8b8d87ae7daa08add4 | |
| parent | e653c298c5fd346b29e15dfde4d7d3da8f863f79 (diff) | |
net: dsa: tag_brcm: legacy: fix pskb_may_pull length
[ Upstream commit efdddc4484859082da6c7877ed144c8121c8ea55 ]
BRCM_LEG_PORT_ID was incorrectly used for pskb_may_pull length.
The correct check is BRCM_LEG_TAG_LEN + VLAN_HLEN, or 10 bytes.
Fixes: 964dbf186eaa ("net: dsa: tag_brcm: add support for legacy tags")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20250529124406.2513779-1-noltari@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/dsa/tag_brcm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/dsa/tag_brcm.c b/net/dsa/tag_brcm.c index 8c3c068728e51..fe75821623a4f 100644 --- a/net/dsa/tag_brcm.c +++ b/net/dsa/tag_brcm.c @@ -257,7 +257,7 @@ static struct sk_buff *brcm_leg_tag_rcv(struct sk_buff *skb, int source_port; u8 *brcm_tag; - if (unlikely(!pskb_may_pull(skb, BRCM_LEG_PORT_ID))) + if (unlikely(!pskb_may_pull(skb, BRCM_LEG_TAG_LEN + VLAN_HLEN))) return NULL; brcm_tag = dsa_etype_header_pos_rx(skb); |