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| author | Cong Wang <xiyou.wangcong@gmail.com> | 2020-07-24 18:45:51 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-25 02:29:52 +0200 |
| commit | af9f691f0f5bdd1ade65a7b84927639882d7c3e5 (patch) | |
| tree | defe494f1be7a5e5a29b3f660cb713dc25dd9073 /net/switchdev | |
| parent | Merge tag 'wireless-drivers-2020-07-24' of git://git.kernel.org/pub/scm/linux... (diff) | |
| download | linux-af9f691f0f5bdd1ade65a7b84927639882d7c3e5.tar.xz linux-af9f691f0f5bdd1ade65a7b84927639882d7c3e5.zip | |
qrtr: orphan socket in qrtr_release()
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>
Diffstat (limited to 'net/switchdev')
0 files changed, 0 insertions, 0 deletions