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| author | Jason Wang | 2018-03-27 14:50:52 +0200 |
|---|---|---|
| committer | David S. Miller | 2018-03-27 19:03:18 +0200 |
| commit | dc6455a71c7fc5117977e197f67f71b49f27baba (patch) | |
| tree | 524dca0c836ebcc1f9d2f4e5fbcfd882955a0f6b /crypto/sha256_generic.c | |
| parent | Merge branch 'mlx4-misc-fixes-for-4.16' (diff) | |
| download | kernel-qcow2-linux-dc6455a71c7fc5117977e197f67f71b49f27baba.tar.gz kernel-qcow2-linux-dc6455a71c7fc5117977e197f67f71b49f27baba.tar.xz kernel-qcow2-linux-dc6455a71c7fc5117977e197f67f71b49f27baba.zip | |
vhost: correctly remove wait queue during poll failure
We tried to remove vq poll from wait queue, but do not check whether
or not it was in a list before. This will lead double free. Fixing
this by switching to use vhost_poll_stop() which zeros poll->wqh after
removing poll from waitqueue to make sure it won't be freed twice.
Cc: Darren Kenny <darren.kenny@oracle.com>
Reported-by: syzbot+c0272972b01b872e604a@syzkaller.appspotmail.com
Fixes: 2b8b328b61c79 ("vhost_net: handle polling errors when setting backend")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'crypto/sha256_generic.c')
0 files changed, 0 insertions, 0 deletions