lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Message-Id: <1488246240-159171-1-git-send-email-sowmini.varadhan@oracle.com> Date: Mon, 27 Feb 2017 17:44:00 -0800 From: Sowmini Varadhan <sowmini.varadhan@...cle.com> To: sowmini.varadhan@...cle.com Subject: [PATCH RFC net-next] Cancel any pending connection attempts before taking down connection This is a test patch being supplied for a trial run on syzkaller. Explicitly cancel the workq before releasing resources that will allow netns deletion, so that the connect request does not trip up on a use-after free of the netns afterward. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@...cle.com> Reported-by: Dmitry Vyukov <dvyukov@...gle.com> --- net/rds/tcp.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/net/rds/tcp.c b/net/rds/tcp.c index 57bb523..2568eb1 100644 --- a/net/rds/tcp.c +++ b/net/rds/tcp.c @@ -509,6 +509,8 @@ static void rds_tcp_conn_paths_destroy(struct rds_connection *conn) for (i = 0; i < RDS_MPATH_WORKERS; i++) { cp = &conn->c_path[i]; + if (cancel_delayed_work_sync(&cp->cp_conn_w)) + pr_info("cancelled on path %d\n", i); tc = cp->cp_transport_data; if (!tc->t_sock) continue; -- 1.7.1
Powered by blists - more mailing lists