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authorMichael S. Tsirkin <mst@redhat.com>2016-01-14 11:43:30 +0200
committerJason Wang <jasowang@redhat.com>2016-02-04 13:22:06 +0800
commitd7f053652fef48bee7c461c162c8d4d2c96ab157 (patch)
tree3f330b046e6102caf7fabb18ede347802630419e /slirp
parent244381ec19ce1412b474f41b5f30fe1da846451b (diff)
downloadqemu-arm-d7f053652fef48bee7c461c162c8d4d2c96ab157.tar.gz
cadence_gem: fix buffer overflow
gem_transmit copies a packet from guest into an tx_packet[2048] array on stack, with size limited by descriptor length set by guest. If guest is malicious and specifies a descriptor length that is too large, and should packet size exceed array size, this results in a buffer overflow. Reported-by: 刘令 <liuling-it@360.cn> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'slirp')
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