diff options
| author | Aditya Pakki <pakki001@umn.edu> | 2018-12-23 19:42:38 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-05 15:37:48 +0100 |
| commit | 145422360a329f12f8c19ddad5edb178625966ee (patch) | |
| tree | eba0b5745ad77947d924fbf9fc9222ce28b884f4 /net | |
| parent | ffe6754349892403d348eb5793aaf278a12aa414 (diff) | |
net/net_namespace: Check the return value of register_pernet_subsys()
[ Upstream commit 0eb987c874dc93f9c9d85a6465dbde20fdd3884c ]
In net_ns_init(), register_pernet_subsys() could fail while registering
network namespace subsystems. The fix checks the return value and
sends a panic() on failure.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/net_namespace.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 60b88718b1d4..1af25d53f63c 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -854,7 +854,8 @@ static int __init net_ns_init(void) mutex_unlock(&net_mutex); - register_pernet_subsys(&net_ns_ops); + if (register_pernet_subsys(&net_ns_ops)) + panic("Could not register network namespace subsystems"); rtnl_register(PF_UNSPEC, RTM_NEWNSID, rtnl_net_newid, NULL, RTNL_FLAG_DOIT_UNLOCKED); |