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[IPV6] UDP: Possible dst leak in udpv6_sendmsg. 

ip6_sk_dst_lookup returns held dst entry. It should be released
on all paths beyond this point. Add missed release when up->pending
is set.

Bug report and initial patch by Denis V. Lunev <den@openvz.org>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Denis V. Lunev <den@openvz.org>
This commit is contained in:
YOSHIFUJI Hideaki 2008-06-04 01:30:25 +09:00
parent e51171019b
commit a3c960899e
1 changed files with 2 additions and 0 deletions
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2
net/ipv6/udp.c
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@ -848,12 +848,14 @@ do_append_data:
} else {
dst_release(dst);
}
dst = NULL;
}
if (err > 0)
err = np->recverr ? net_xmit_errno(err) : 0;
release_sock(sk);
out:
dst_release(dst);
fl6_sock_release(flowlabel);
if (!err)
return len;