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| author | Prasad J Pandit | 2016-09-29 20:57:33 +0200 |
|---|---|---|
| committer | Jason Wang | 2016-10-26 03:57:59 +0200 |
| commit | 34e29ce754c02bb6b3bdd244fbb85033460feaff (patch) | |
| tree | fa2f1228043f4ea33ba3b7e9de9be0f65147fde2 /scripts/modules/module_block.py | |
| parent | Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-10-25' into ... (diff) | |
| download | qemu-34e29ce754c02bb6b3bdd244fbb85033460feaff.tar.gz qemu-34e29ce754c02bb6b3bdd244fbb85033460feaff.tar.xz qemu-34e29ce754c02bb6b3bdd244fbb85033460feaff.zip | |
net: pcnet: check rx/tx descriptor ring length
The AMD PC-Net II emulator has set of control and status(CSR)
registers. Of these, CSR76 and CSR78 hold receive and transmit
descriptor ring length respectively. This ring length could range
from 1 to 65535. Setting ring length to zero leads to an infinite
loop in pcnet_rdra_addr() or pcnet_transmit(). Add check to avoid it.
Reported-by: Li Qiang <liqiang6-s@360.cn>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'scripts/modules/module_block.py')
0 files changed, 0 insertions, 0 deletions