diff options
| author | Cong Wang <xiyou.wangcong@gmail.com> | 2018-02-05 14:41:45 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-25 11:05:43 +0100 |
| commit | 8d5c422fc709def69d574b03052c73bb6442a638 (patch) | |
| tree | 9a7dee16adbcce2f028267e753f437230b5e693a /net/rds | |
| parent | c6f3be756b784b69253a1d4bcd72c2e891f87a74 (diff) | |
netfilter: xt_RATEEST: acquire xt_rateest_mutex for hash insert
commit 7dc68e98757a8eccf8ca7a53a29b896f1eef1f76 upstream.
rateest_hash is supposed to be protected by xt_rateest_mutex,
and, as suggested by Eric, lookup and insert should be atomic,
so we should acquire the xt_rateest_mutex once for both.
So introduce a non-locking helper for internal use and keep the
locking one for external.
Reported-by: <syzbot+5cb189720978275e4c75@syzkaller.appspotmail.com>
Fixes: 5859034d7eb8 ("[NETFILTER]: x_tables: add RATEEST target")
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/rds')
0 files changed, 0 insertions, 0 deletions