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

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Also rename T_UNSPEC because an upcoming public header file
update will use that name.
This commit is contained in:
Florian Weimer
2016-12-31 20:22:09 +01:00
parent 3c589b1a8a
commit fc82b0a2df
8 changed files with 220 additions and 8 deletions
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resolv/nss_dns/dns-host.c
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@ -324,7 +324,7 @@ _nss_dns_gethostbyname4_r (const char *name, struct gaih_addrtuple **pat,
int olderr = errno;
enum nss_status status;
int n = __libc_res_nsearch (&_res, name, C_IN, T_UNSPEC,
int n = __libc_res_nsearch (&_res, name, C_IN, T_QUERY_A_AND_AAAA,
host_buffer.buf->buf, 2048, &host_buffer.ptr,
&ans2p, &nans2p, &resplen2, &ans2p_malloced);
if (n >= 0)