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| author | Timo Teras <timo.teras@iki.fi> | 2008-10-01 05:17:54 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-10-01 05:17:54 -0700 |
| commit | 0523820482dcb42784572ffd2296c2f08c275a2b (patch) | |
| tree | 19a31ae7b58a650fd58dab39a391aba3f7e3a23a /net/key | |
| parent | 5dc121e9a7a8a3721cefeb07f3559f50fbedc67e (diff) | |
| download | linux-0523820482dcb42784572ffd2296c2f08c275a2b.tar.gz linux-0523820482dcb42784572ffd2296c2f08c275a2b.tar.bz2 linux-0523820482dcb42784572ffd2296c2f08c275a2b.zip | |
af_key: Free dumping state on socket close
Fix a xfrm_{state,policy}_walk leak if pfkey socket is closed while
dumping is on-going.
Signed-off-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/key')
| -rw-r--r-- | net/key/af_key.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/net/key/af_key.c b/net/key/af_key.c index d628df97e02e..b7f5a1c353ee 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -73,22 +73,18 @@ static int pfkey_can_dump(struct sock *sk) return 0; } -static int pfkey_do_dump(struct pfkey_sock *pfk) +static void pfkey_terminate_dump(struct pfkey_sock *pfk) { - int rc; - - rc = pfk->dump.dump(pfk); - if (rc == -ENOBUFS) - return 0; - - pfk->dump.done(pfk); - pfk->dump.dump = NULL; - pfk->dump.done = NULL; - return rc; + if (pfk->dump.dump) { + pfk->dump.done(pfk); + pfk->dump.dump = NULL; + pfk->dump.done = NULL; + } } static void pfkey_sock_destruct(struct sock *sk) { + pfkey_terminate_dump(pfkey_sk(sk)); skb_queue_purge(&sk->sk_receive_queue); if (!sock_flag(sk, SOCK_DEAD)) { @@ -310,6 +306,18 @@ static int pfkey_broadcast(struct sk_buff *skb, gfp_t allocation, return err; } +static int pfkey_do_dump(struct pfkey_sock *pfk) +{ + int rc; + + rc = pfk->dump.dump(pfk); + if (rc == -ENOBUFS) + return 0; + + pfkey_terminate_dump(pfk); + return rc; +} + static inline void pfkey_hdr_dup(struct sadb_msg *new, struct sadb_msg *orig) { *new = *orig; |