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| author | Cong Wang <xiyou.wangcong@gmail.com> | 2020-02-02 20:30:53 -0800 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2020-02-07 15:53:31 +0100 |
| commit | 8d0015a7ab76b8b1e89a3e5f5710a6e5103f2dd5 (patch) | |
| tree | 3aecb3dc3a0d48cca539380ab4b80cfb7bdcb481 /net/netfilter/nf_flow_table_offload.c | |
| parent | c4a3922d2d20c710f827d3a115ee338e8d0467df (diff) | |
netfilter: xt_hashlimit: limit the max size of hashtable
The user-specified hashtable size is unbound, this could
easily lead to an OOM or a hung task as we hold the global
mutex while allocating and initializing the new hashtable.
Add a max value to cap both cfg->size and cfg->max, as
suggested by Florian.
Reported-and-tested-by: syzbot+adf6c6c2be1c3a718121@syzkaller.appspotmail.com
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_flow_table_offload.c')
0 files changed, 0 insertions, 0 deletions