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| author |   Aditya Pakki <pakki001@umn.edu> | 2018-12-23 19:42:38 -0600 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-12-24 14:43:27 -0800 |
| commit | 0eb987c874dc93f9c9d85a6465dbde20fdd3884c (patch) | |
| tree | 72560a0691b897a4b31781eb1b82f9e6e8dba4c6 /net/core/net_namespace.c | |
| parent | net/netlink_compat: Fix a missing check of nla_parse_nested (diff) | |
| download | linux-dev-0eb987c874dc93f9c9d85a6465dbde20fdd3884c.tar.xz linux-dev-0eb987c874dc93f9c9d85a6465dbde20fdd3884c.zip | |
net/net_namespace: Check the return value of register_pernet_subsys()
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>
Diffstat (limited to 'net/core/net_namespace.c')
| -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 fefe72774aeb..af8849a7a9c3 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -917,7 +917,8 @@ static int __init net_ns_init(void) init_net_initialized = true; up_write(&pernet_ops_rwsem); - 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); |