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 15:34:55 +0100 |
commit | 9b852f0a5416c3d2f812413d44fc0166a4c8c419 (patch) | |
tree | a69223a5c3c8fe694db6e99e1a05788e97c75644 /net/core | |
parent | 3c1af2c0a3cdfbc7f63012b86c8f9b92e6ffddc0 (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/core')
-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 4509dec7bd1c..7630fa80db92 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -802,7 +802,8 @@ 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, NULL); rtnl_register(PF_UNSPEC, RTM_GETNSID, rtnl_net_getid, rtnl_net_dumpid, |