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| author | linzhecheng | 2018-03-28 15:34:35 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2018-04-09 16:35:46 +0200 |
| commit | d434e5ac5d70e9da7d20e50246af9251a125bdad (patch) | |
| tree | 52220b1e922e7b615d38b109f820025275c1ec06 /include/exec/user | |
| parent | vhost: Allow adjoining regions (diff) | |
| download | qemu-d434e5ac5d70e9da7d20e50246af9251a125bdad.tar.gz qemu-d434e5ac5d70e9da7d20e50246af9251a125bdad.tar.xz qemu-d434e5ac5d70e9da7d20e50246af9251a125bdad.zip | |
virtio-serial: fix heap-over-flow
Check device having the feature of VIRTIO_CONSOLE_F_EMERG_WRITE before
get config->emerg_wr. It is neccessary because sizeof(virtio_console_config)
is 8 byte if VirtIOSerial doesn't have the feature of
VIRTIO_CONSOLE_F_EMERG_WRITE(see virtio_serial_device_realize),
read/write emerg_wr will lead to heap-over-flow.
Signed-off-by: linzhecheng <linzhecheng@huawei.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/exec/user')
0 files changed, 0 insertions, 0 deletions