[PATCH] virnetdevbandwidth: Don't generate burst outside of boundaries

[Laine Stump]

On 3/5/21 6:11 AM, Michal Privoznik wrote:
> When generating TC rules for domain's outbound traffic, Libvirt
> will use the 'average' as the default for 'burst' - it's been
> this way since the feature introduction in v0.9.4-rc1~22. The
> reason is that 'average' considers 'burst' for policing. However,
> when parsing its command line TC uses an unsigned int (with
> overflow detection) to store the 'burst' size. This means, that
> the upper limit for the value is UINT_MAX, well UINT_MAX / 1024
> because we are putting the value in KiB onto the command line.
> 
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1912210
> Signed-off-by: Michal Privoznik <mprivozn at redhat.com>

Reviewed-by: Laine Stump <laine at redhat.com>