mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 04:18:39 +08:00
net: sched: fix possible refcount leak in tc_chain_tmplt_add()
try_module_get will be called in tcf_proto_lookup_ops. So module_put needs
to be called to drop the refcount if ops don't implement the required
function.
Fixes: 9f407f1768
("net: sched: introduce chain templates")
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
682881ee45
commit
44f8baaf23
@ -2950,6 +2950,7 @@ static int tc_chain_tmplt_add(struct tcf_chain *chain, struct net *net,
|
||||
return PTR_ERR(ops);
|
||||
if (!ops->tmplt_create || !ops->tmplt_destroy || !ops->tmplt_dump) {
|
||||
NL_SET_ERR_MSG(extack, "Chain templates are not supported with specified classifier");
|
||||
module_put(ops->owner);
|
||||
return -EOPNOTSUPP;
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user