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| author | Shmulik Ladkani <shmulik.ladkani@ravellosystems.com> | 2015-10-15 13:54:30 +0300 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2015-10-27 10:30:38 +0800 |
| commit | eedeeeffd419ab149e0b0ad5fc4b7cf5e1db6274 (patch) | |
| tree | 3214b3c8d13808a77f5b68438df25a6120e27e22 /HACKING | |
| parent | d3e0c032f52f4fb855f9bd2892ebd175a9d975a1 (diff) | |
| download | qemu-eedeeeffd419ab149e0b0ad5fc4b7cf5e1db6274.zip qemu-eedeeeffd419ab149e0b0ad5fc4b7cf5e1db6274.tar.gz qemu-eedeeeffd419ab149e0b0ad5fc4b7cf5e1db6274.tar.bz2 | |
vmxnet3: Do not fill stats if device is inactive
Guest OS may issue VMXNET3_CMD_GET_STATS even before device was
activated (for example in linux, after insmod but prior net-dev open).
Accessing shared descriptors prior device activation is illegal as the
VMXNET3State structures have not been fully initialized.
As a result, guest memory gets corrupted and may lead to guest OS
crashes.
Fix, by not filling the stats descriptors if device is inactive.
Reported-by: Leonid Shatz <leonid.shatz@ravellosystems.com>
Acked-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Dana Rubin <dana.rubin@ravellosystems.com>
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'HACKING')
0 files changed, 0 insertions, 0 deletions