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authorAndy Lutomirski <luto@amacapital.net>2013-08-22 11:39:15 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-09-26 17:18:05 -0700
commit979ad974d2d7d1e98e21b582a11acdf0713914e6 (patch)
treeaa0d67ecd11d881a2d412fae5c3870c0de5071f2 /net
parentac78ae630c039e548e2b8d41b6036f240386d770 (diff)
net: Check the correct namespace when spoofing pid over SCM_RIGHTS
commit d661684cf6820331feae71146c35da83d794467e upstream. This is a security bug. The follow-up will fix nsproxy to discourage this type of issue from happening again. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/core/scm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/scm.c b/net/core/scm.c
index 03795d0147f..b4da80b1cc0 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) ||