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| author | Cong Wang <xiyou.wangcong@gmail.com> | 2020-07-24 09:45:51 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-31 18:37:48 +0200 |
| commit | 4b864ae664966e490cdf91ff8bbce6377c5552db (patch) | |
| tree | ab586129c4c99f51d9b8c00ac730e12949a01402 /net/ipv4/tcp_input.c | |
| parent | 9c6d57298e0c9651e333c2f4f2a863c01f12aef7 (diff) | |
qrtr: orphan socket in qrtr_release()
[ Upstream commit af9f691f0f5bdd1ade65a7b84927639882d7c3e5 ]
We have to detach sock from socket in qrtr_release(),
otherwise skb->sk may still reference to this socket
when the skb is released in tun->queue, particularly
sk->sk_wq still points to &sock->wq, which leads to
a UAF.
Reported-and-tested-by: syzbot+6720d64f31c081c2f708@syzkaller.appspotmail.com
Fixes: 28fb4e59a47d ("net: qrtr: Expose tunneling endpoint to user space")
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv4/tcp_input.c')
0 files changed, 0 insertions, 0 deletions