| commit | aeadd93f2b0a609f603ac33e574b97a9832d1b90 | [log] [tgz] |
|---|---|---|
| author | Dan Carpenter <dan.carpenter@oracle.com> | Sat Sep 22 16:46:48 2018 +0300 |
| committer | David S. Miller <davem@davemloft.net> | Mon Oct 01 22:34:14 2018 -0700 |
| tree | 32784e4248856c3d4ca4d65f413d4ef301fb3c06 | |
| parent | ee0b6f4834b59bb0002e2dc8f42a73a399a9246e [diff] |
net: sched: act_ipt: check for underflow in __tcf_ipt_init()
If "td->u.target_size" is larger than sizeof(struct xt_entry_target) we
return -EINVAL. But we don't check whether it's smaller than
sizeof(struct xt_entry_target) and that could lead to an out of bounds
read.
Fixes: 7ba699c604ab ("[NET_SCHED]: Convert actions from rtnetlink to new netlink API")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>