]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
ip: limit use of gso_size to udp
authorWillem de Bruijn <willemb@google.com>
Tue, 19 Jun 2018 16:47:52 +0000 (12:47 -0400)
committerDavid S. Miller <davem@davemloft.net>
Wed, 20 Jun 2018 05:41:04 +0000 (14:41 +0900)
commit9887cba19978a5f288100ef90a37684cc8d5e0a6
tree83db207b79f71d6473321623b64cb10901e5c668
parentb6cfffa7ad923c73f317ea50fd4ebcb3b4b6669c
ip: limit use of gso_size to udp

The ipcm(6)_cookie field gso_size is set only in the udp path. The ip
layer copies this to cork only if sk_type is SOCK_DGRAM. This check
proved too permissive. Ping and l2tp sockets have the same type.

Limit to sockets of type SOCK_DGRAM and protocol IPPROTO_UDP to
exclude ping sockets.

v1 -> v2
- remove irrelevant whitespace changes

Fixes: bec1f6f69736 ("udp: generate gso with UDP_SEGMENT")
Reported-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/ip_output.c
net/ipv6/ip6_output.c