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description of problem:
virsh blockcopy command option --bandwidth has a overflow issue
Version-Release number of selected component (if applicable):
libvirt-1.2.13-1.el7.x86_64
How reproducible:
100%
Steps to Reproduce:
1.
[root@lhuang ~]# virsh blockcopy test3 hda --xml gluster.xml --bandwidth 11111111111111
error: internal error: argument key 'speed' must not be negative
[root@lhuang ~]# virsh blockcopy test3 hda --xml gluster.xml --bandwidth 111111111111111
error: internal error: unable to execute QEMU command 'drive-mirror': Could not create file: Permission denied
[root@lhuang ~]# virsh blockcopy test3 hda --xml gluster.xml --bandwidth 1111111111111111
error: internal error: unable to execute QEMU command 'drive-mirror': Could not create file: Permission denied
[root@lhuang ~]# virsh blockcopy test3 hda --xml gluster.xml --bandwidth 11111111111111111
error: internal error: argument key 'speed' must not be negative
Actual results:
virsh blockcopy command option --bandwidth has a overflow issue
Expected results:
report error : bandwidth must be less than...
infomation:
check the code:
miss goto clean up
if (bandwidth) {
/* bandwidth is ulong MiB/s, but the typed parameter is
* ullong bytes/s; make sure we don't overflow */
unsigned long long limit = MIN(ULONG_MAX, ULLONG_MAX >> 20);
if (bandwidth > limit) {
virReportError(VIR_ERR_OVERFLOW,
_("bandwidth must be less than %llu"),
ULLONG_MAX >> 20);
}
Additional info:
I have send a patch to upstream:
http://www.redhat.com/archives/libvir-list/2015-March/msg01428.html
Fixed upstream:
commit 390f218b83513a00b81549eb66854d8b263cb014
Author: Luyao Huang <lhuang>
Date: Fri Mar 27 17:56:29 2015 +0800
virsh: blockCopy: Add missing jump on error path
The overflow check for the bandwidth parameter did not jump to the
cleanup label.
Additionally virsh should use vshError instead of virReportError.
v1.2.14-rc1-13-g390f218
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2015-2202.html
description of problem: virsh blockcopy command option --bandwidth has a overflow issue Version-Release number of selected component (if applicable): libvirt-1.2.13-1.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. [root@lhuang ~]# virsh blockcopy test3 hda --xml gluster.xml --bandwidth 11111111111111 error: internal error: argument key 'speed' must not be negative [root@lhuang ~]# virsh blockcopy test3 hda --xml gluster.xml --bandwidth 111111111111111 error: internal error: unable to execute QEMU command 'drive-mirror': Could not create file: Permission denied [root@lhuang ~]# virsh blockcopy test3 hda --xml gluster.xml --bandwidth 1111111111111111 error: internal error: unable to execute QEMU command 'drive-mirror': Could not create file: Permission denied [root@lhuang ~]# virsh blockcopy test3 hda --xml gluster.xml --bandwidth 11111111111111111 error: internal error: argument key 'speed' must not be negative Actual results: virsh blockcopy command option --bandwidth has a overflow issue Expected results: report error : bandwidth must be less than... infomation: check the code: miss goto clean up if (bandwidth) { /* bandwidth is ulong MiB/s, but the typed parameter is * ullong bytes/s; make sure we don't overflow */ unsigned long long limit = MIN(ULONG_MAX, ULLONG_MAX >> 20); if (bandwidth > limit) { virReportError(VIR_ERR_OVERFLOW, _("bandwidth must be less than %llu"), ULLONG_MAX >> 20); } Additional info: I have send a patch to upstream: http://www.redhat.com/archives/libvir-list/2015-March/msg01428.html