diff options
| author | David S. Miller <davem@davemloft.net> | 2013-04-01 13:36:50 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-01 13:36:50 -0400 |
| commit | a210576cf891e9e6d2c238eabcf5c1286b1e7526 (patch) | |
| tree | 0fa81a901cf628b25e6ee79057700cf39e59818a /ipc | |
| parent | 7d4c04fc170087119727119074e72445f2bb192b (diff) | |
| parent | 3658f3604066d5500ebd73a04084f127dc779441 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
net/mac80211/sta_info.c
net/wireless/core.h
Two minor conflicts in wireless. Overlapping additions of extern
declarations in net/wireless/core.h and a bug fix overlapping with
the addition of a boolean parameter to __ieee80211_key_free().
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/mqueue.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 3953fda2e8b..e4e47f64744 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -330,8 +330,16 @@ static struct dentry *mqueue_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) { - if (!(flags & MS_KERNMOUNT)) - data = current->nsproxy->ipc_ns; + if (!(flags & MS_KERNMOUNT)) { + struct ipc_namespace *ns = current->nsproxy->ipc_ns; + /* Don't allow mounting unless the caller has CAP_SYS_ADMIN + * over the ipc namespace. + */ + if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN)) + return ERR_PTR(-EPERM); + + data = ns; + } return mount_ns(fs_type, flags, data, mqueue_fill_super); } |