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Re: [Xen-users] [Xen-devel] Xen Security Advisory 206 - xenstore denial of service via repeated update

On Wed, 29 Mar 2017, Xen.org security team wrote:

Hash: SHA1

                   Xen Security Advisory XSA-206
                             version 9

           xenstore denial of service via repeated update

I am seeing a build failure from these patches when using gcc 7. The problem is with xsa206-4.80002-xenstored-Log-when-the-write-transaction-rate-limit-.patch because in tools/xenstore/xenstored_domain.c the patch adds the boolean wrl_delay_logged to the structure "domain" but later it tries to increment it, resulting in the error xenstored_domain.c: In function 'wrl_apply_debit_actual': xenstored_domain.c:949:32: error: increment of a boolean expression [-Werror=bool-operation]
   if (!domain->wrl_delay_logged++) {

        Michael Young

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