diff options
| author | Andy Lutomirski <luto@amacapital.net> | 2013-08-22 11:39:15 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-08-27 13:52:52 -0400 |
| commit | d661684cf6820331feae71146c35da83d794467e (patch) | |
| tree | ca8cc23e3d9da33b3ca739f11c1d6e954105aefe | |
| parent | dd5746bf6b48bb837e9f5af14b9b241fc4fdc1ef (diff) | |
| download | linux-d661684cf6820331feae71146c35da83d794467e.tar.gz linux-d661684cf6820331feae71146c35da83d794467e.tar.xz | |
net: Check the correct namespace when spoofing pid over SCM_RIGHTS
This is a security bug.
The follow-up will fix nsproxy to discourage this type of issue from
happening again.
Cc: stable@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/core/scm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/scm.c b/net/core/scm.c index 03795d0147f2..b4da80b1cc07 100644 --- a/net/core/scm.c +++ b/net/core/scm.c @@ -54,7 +54,7 @@ static __inline__ int scm_check_creds(struct ucred *creds) return -EINVAL; if ((creds->pid == task_tgid_vnr(current) || - ns_capable(current->nsproxy->pid_ns->user_ns, CAP_SYS_ADMIN)) && + ns_capable(task_active_pid_ns(current)->user_ns, CAP_SYS_ADMIN)) && ((uid_eq(uid, cred->uid) || uid_eq(uid, cred->euid) || uid_eq(uid, cred->suid)) || nsown_capable(CAP_SETUID)) && ((gid_eq(gid, cred->gid) || gid_eq(gid, cred->egid) || |