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platform_kernel-5.15
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[NETFILTER]: nfnetlink_log: fix possible NULL pointer dereference 

Eliminate possible NULL pointer dereference in nfulnl_recv_config().

Signed-off-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michal Miroslaw 2007-03-04 15:59:20 -08:00 committed by David S. Miller
parent a497097d35
commit dd16704eba
1 changed files with 4 additions and 0 deletions
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4
net/netfilter/nfnetlink_log.c
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@ -858,6 +858,9 @@ nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
ret = -EINVAL; ret = -EINVAL;
break; break;
} }
if (!inst)
goto out;
} else { } else {
if (!inst) { if (!inst) {
UDEBUG("no config command, and no instance for " UDEBUG("no config command, and no instance for "
@ -911,6 +914,7 @@ nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
out_put: out_put:
instance_put(inst); instance_put(inst);
out:
return ret; return ret;
} }