Mercurial > hg > nginx-quic
comparison src/mail/ngx_mail_handler.c @ 4619:3171ec7d0d05
Resolver: protection from duplicate responses.
If we already had CNAME in resolver node (i.e. rn->cnlen and rn->u.cname
set), and got additional response with A record, it resulted in rn->cnlen
set and rn->u.cname overwritten by rn->u.addr (or rn->u.addrs), causing
segmentation fault later in ngx_resolver_free_node() on an attempt to free
overwritten rn->u.cname. The opposite (i.e. CNAME got after A) might cause
similar problems as well.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 14 May 2012 09:13:45 +0000 |
parents | d620f497c50f |
children | 28a64967e891 |
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4618:c05cfc46b3bc | 4619:3171ec7d0d05 |
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