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ipv6 flowlabel: Ensure to take lock when modifying np->ip6_sk_fl_list. 

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki / 吉藤英明 2013-01-30 09:26:42 +00:00 committed by David S. Miller
parent 3b58908a92
commit f256dc59d0
1 changed files with 11 additions and 2 deletions
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13
net/ipv6/ip6_flowlabel.c
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@ -255,10 +255,19 @@ void fl6_free_socklist(struct sock *sk)
struct ipv6_pinfo *np = inet6_sk(sk);
struct ipv6_fl_socklist *sfl;
while ((sfl = np->ipv6_fl_list) != NULL) {
np->ipv6_fl_list = sfl->next;
if (!np->ipv6_fl_list)
return;
write_lock_bh(&ipv6_sk_fl_lock);
sfl = np->ipv6_fl_list;
np->ipv6_fl_list = NULL;
write_unlock_bh(&ipv6_sk_fl_lock);
while (sfl) {
struct ipv6_fl_socklist *next = sfl->next;
fl_release(sfl->fl);
kfree(sfl);
sfl = next;
}
}