diff mbox series

netfilter: Fix memleak in nf_nat_init

Message ID 20210109120121.15938-1-dinghao.liu@zju.edu.cn (mailing list archive)
State Awaiting Upstream
Delegated to: Netdev Maintainers
Headers show
Series netfilter: Fix memleak in nf_nat_init | expand

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netdev/cc_maintainers success CCed 8 of 8 maintainers
netdev/source_inline success Was 0 now: 0
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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
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netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 7 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link
netdev/stable success Stable not CCed

Commit Message

Dinghao Liu Jan. 9, 2021, 12:01 p.m. UTC
When register_pernet_subsys() fails, nf_nat_bysource
should be freed just like when nf_ct_extend_register()
fails.

Fixes: 1cd472bf036ca ("netfilter: nf_nat: add nat hook register functions to nf_nat")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---
 net/netfilter/nf_nat_core.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Florian Westphal Jan. 9, 2021, 12:12 p.m. UTC | #1
Dinghao Liu <dinghao.liu@zju.edu.cn> wrote:
> When register_pernet_subsys() fails, nf_nat_bysource
> should be freed just like when nf_ct_extend_register()
> fails.

Acked-by: Florian Westphal <fw@strlen.de>
Pablo Neira Ayuso Jan. 10, 2021, 8:39 a.m. UTC | #2
On Sat, Jan 09, 2021 at 08:01:21PM +0800, Dinghao Liu wrote:
> When register_pernet_subsys() fails, nf_nat_bysource
> should be freed just like when nf_ct_extend_register()
> fails.

Applied, thanks.
diff mbox series

Patch

diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index ea923f8cf9c4..b7c3c902290f 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -1174,6 +1174,7 @@  static int __init nf_nat_init(void)
 	ret = register_pernet_subsys(&nat_net_ops);
 	if (ret < 0) {
 		nf_ct_extend_unregister(&nat_extend);
+		kvfree(nf_nat_bysource);
 		return ret;
 	}