diff options
| author |   George McCollister <george.mccollister@gmail.com> | 2021-05-24 13:50:54 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-05-24 14:10:28 -0700 |
| commit | 48b491a5cc74333c4a6a82fe21cea42c055a3b0b (patch) | |
| tree | 26ea4fa3badf5fbf8bd12d290a8c81a75250a25e /net/hsr/hsr_main.h | |
| parent | net: appletalk: cops: Fix data race in cops_probe1 (diff) | |
| download | linux-dev-48b491a5cc74333c4a6a82fe21cea42c055a3b0b.tar.xz linux-dev-48b491a5cc74333c4a6a82fe21cea42c055a3b0b.zip | |
net: hsr: fix mac_len checks
Commit 2e9f60932a2c ("net: hsr: check skb can contain struct hsr_ethhdr
in fill_frame_info") added the following which resulted in -EINVAL
always being returned:
if (skb->mac_len < sizeof(struct hsr_ethhdr))
return -EINVAL;
mac_len was not being set correctly so this check completely broke
HSR/PRP since it was always 14, not 20.
Set mac_len correctly and modify the mac_len checks to test in the
correct places since sometimes it is legitimately 14.
Fixes: 2e9f60932a2c ("net: hsr: check skb can contain struct hsr_ethhdr in fill_frame_info")
Signed-off-by: George McCollister <george.mccollister@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/hsr/hsr_main.h')
| -rw-r--r-- | net/hsr/hsr_main.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h index 8f264672b70b..53d1f7a82463 100644 --- a/net/hsr/hsr_main.h +++ b/net/hsr/hsr_main.h @@ -186,8 +186,8 @@ struct hsr_proto_ops { struct hsr_port *port); struct sk_buff * (*create_tagged_frame)(struct hsr_frame_info *frame, struct hsr_port *port); - void (*fill_frame_info)(__be16 proto, struct sk_buff *skb, - struct hsr_frame_info *frame); + int (*fill_frame_info)(__be16 proto, struct sk_buff *skb, + struct hsr_frame_info *frame); bool (*invalid_dan_ingress_frame)(__be16 protocol); void (*update_san_info)(struct hsr_node *node, bool is_sup); }; |