diff options
| author |   Julian Anastasov <ja@ssi.bg> | 2015-02-21 21:03:10 +0200 |
|---|---|---|
| committer |   Simon Horman <horms@verge.net.au> | 2015-02-22 16:16:36 -0500 |
| commit | 528c943f3bb919aef75ab2fff4f00176f09a4019 (patch) | |
| tree | 51752bf0c6875a6b9f61ed2ebce42f539a080598 /net/netfilter/ipvs/ip_vs_sync.c | |
| parent | netfilter: xt_socket: fix a stack corruption bug (diff) | |
| download | linux-dev-528c943f3bb919aef75ab2fff4f00176f09a4019.tar.xz linux-dev-528c943f3bb919aef75ab2fff4f00176f09a4019.zip | |
ipvs: add missing ip_vs_pe_put in sync code
ip_vs_conn_fill_param_sync() gets in param.pe a module
reference for persistence engine from __ip_vs_pe_getbyname()
but forgets to put it. Problem occurs in backup for
sync protocol v1 (2.6.39).
Also, pe_data usually comes in sync messages for
connection templates and ip_vs_conn_new() copies
the pointer only in this case. Make sure pe_data
is not leaked if it comes unexpectedly for normal
connections. Leak can happen only if bogus messages
are sent to backup server.
Fixes: fe5e7a1efb66 ("IPVS: Backup, Adding Version 1 receive capability")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'net/netfilter/ipvs/ip_vs_sync.c')
| -rw-r--r-- | net/netfilter/ipvs/ip_vs_sync.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c index c47ffd7a0a70..d93ceeb3ef04 100644 --- a/net/netfilter/ipvs/ip_vs_sync.c +++ b/net/netfilter/ipvs/ip_vs_sync.c @@ -896,6 +896,8 @@ static void ip_vs_proc_conn(struct net *net, struct ip_vs_conn_param *param, IP_VS_DBG(2, "BACKUP, add new conn. failed\n"); return; } + if (!(flags & IP_VS_CONN_F_TEMPLATE)) + kfree(param->pe_data); } if (opt) @@ -1169,6 +1171,7 @@ static inline int ip_vs_proc_sync_conn(struct net *net, __u8 *p, __u8 *msg_end) (opt_flags & IPVS_OPT_F_SEQ_DATA ? &opt : NULL) ); #endif + ip_vs_pe_put(param.pe); return 0; /* Error exit */ out: |