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Name Last Modified Last Commit
cves/CVE-2019-3900 2019-08-05 17:51:27 UTC 2019-08-05
vhost: scsi: add weight support

Author: Jason Wang
Author Date: 2019-05-17 04:29:52 UTC

vhost: scsi: add weight support

This patch will check the weight and exit the loop if we exceeds the
weight. This is useful for preventing scsi kthread from hogging cpu
which is guest triggerable.

This addresses CVE-2019-3900.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Fixes: 057cbf49a1f0 ("tcm_vhost: Initial merge for vhost level target fabric driver")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>


(backported from commit c1ea02f15ab5efb3e93fc3144d895410bf79fcf2)
[tyhicks: Backport to Xenial:
 - Minor context adjustment in local variables
 - Adjust context around the loop in vhost_scsi_handle_vq()
 - No need to modify vhost_scsi_ctl_handle_vq() since it was added later
   in commit 0d02dbd68c47 ("vhost/scsi: Respond to control queue
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>

spectrersb 2018-08-28 18:17:04 UTC 2018-08-28
Bump version

Author: Tyler Hicks
Author Date: 2018-08-28 18:17:04 UTC

Bump version

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