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Re: [PATCH COMMITTED] CVE-2015-5180: resolv: Fix crash with internal QTYPE [BZ #18784]

On 06/13/2017 11:30 PM, H.J. Lu wrote:
> On Sat, Dec 31, 2016 at 11:50 AM, Florian Weimer <> wrote:
>> Also rename T_UNSPEC because an upcoming public header file
>> update will use that name.
>> 2016-12-31  Florian Weimer  <>
>>         [BZ #18784]
>>         CVE-2015-5180
>>         * include/arpa/nameser_compat.h (T_QUERY_A_AND_AAAA): Rename from
>>         T_UNSPEC.  Adjust value.
>>         * resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname4_r): Use it.
>>         * resolv/res_query.c (__libc_res_nquery): Likewise.
>>         * resolv/res_mkquery.c (res_nmkquery): Check for out-of-range
>>         QTYPEs.
>>         * resolv/tst-resolv-qtypes.c: New file.
>>         * resolv/Makefile (xtests): Add tst-resolv-qtypes.
>>         (tst-resolv-qtypes): Link against libresolv and libpthread.
> This patch was backported to 2.24 branch, which doesn't have
> support/check.h.  I got
> tst-resolv-qtypes.c:21:27: fatal error: support/check.h: No such file
> or directory
>  #include <support/check.h>
>                            ^
> compilation terminated.

Oops.  It's an xtest, so it is not immediately visible.

Arjun has backported the support/ directory since then, so this is
already fixed on the branch.


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