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- fix netlink (inet_diag) inside vservers
[packages/kernel.git] / linux-2.6-grsec-common.patch
1 --- linux-2.6.20/grsecurity/gracl_shm.c~        2007-03-24 04:54:27.000000000 +0100
2 +++ linux-2.6.20/grsecurity/gracl_shm.c 2007-03-24 04:55:46.332159000 +0100
3 @@ -6,6 +6,7 @@
4  #include <linux/gracl.h>
5  #include <linux/grsecurity.h>
6  #include <linux/grinternal.h>
7 +#include <linux/vs_pid.h>
8  
9  int
10  gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid,
11 --- linux-2.6.20/localversion-grsec     2007-03-24 04:54:27.000000000 +0100
12 +++ /dev/null   2007-03-24 05:05:10.455414500 +0100
13 @@ -1 +0,0 @@
14 --grsec
15 --- linux-2.6.20/grsecurity/grsec_sock.c~       2007-03-24 05:38:40.000000000 +0100
16 +++ linux-2.6.20/grsecurity/grsec_sock.c        2007-03-24 05:47:11.347998750 +0100
17 @@ -7,6 +7,7 @@
18  #include <linux/ip.h>
19  #include <net/sock.h>
20  #include <net/inet_sock.h>
21 +#include <linux/vs_context.h>
22  #include <linux/grsecurity.h>
23  #include <linux/grinternal.h>
24  #include <linux/gracl.h>
25 ===
26 === analogous as capable()
27 ===
28 --- a/kernel/capability.c~      2007-12-11 00:46:02.000000000 +0100
29 +++ a/kernel/capability.c       2007-12-11 01:35:00.244481500 +0100
30 @@ -253,6 +253,8 @@ int __capable(struct task_struct *t, int
31  }
32  int capable_nolog(int cap)
33  {
34 +       if (vs_check_bit(VXC_CAP_MASK, cap) && !vx_mcaps(1L << cap))
35 +               return 0;
36         if ((security_capable(current, cap) == 0) && gr_is_capable_nolog(cap)) {
37                 current->flags |= PF_SUPERPRIV;
38                 return 1;
39 ===
40 === let vserver block signals before grsec
41 ===
42 --- a/kernel/signal.c   2007-10-02 00:08:49.954483500 +0200
43 +++ b/kernel/signal.c   2007-10-02 00:24:31.969355750 +0200
44 @@ -539,11 +539,11 @@ static int check_kill_permission(int sig
45                 return error;
46  
47         error = -EPERM;
48 -       if ((((sig != SIGCONT) ||
49 +       if (((sig != SIGCONT) ||
50                 (process_session(current) != process_session(t)))
51             && (current->euid ^ t->suid) && (current->euid ^ t->uid)
52             && (current->uid ^ t->suid) && (current->uid ^ t->uid)
53 -           && !capable(CAP_KILL)) || gr_handle_signal(t, sig))
54 +           && !capable(CAP_KILL))
55                 return error;
56  
57         error = -ESRCH;
58 @@ -553,6 +553,11 @@ static int check_kill_permission(int sig
59                         sig, info, t, vx_task_xid(t), t->pid, current->xid);
60                 return error;
61         }
62 +
63 +       error = -EPERM;
64 +       if (gr_handle_signal(t, sig))
65 +               return error;
66 +
67  skip:
68         return security_task_kill(t, info, sig, 0);
69  }
70 ===
71 === vserver netlink protection
72 ===
73 --- a/security/commoncap.c~     2007-12-10 23:52:36.000000000 +0100
74 +++ a/security/commoncap.c      2007-12-11 01:43:04.426741000 +0100
75 @@ -27,7 +27,7 @@
76  
77  int cap_netlink_send(struct sock *sk, struct sk_buff *skb)
78  {
79 -       cap_t(NETLINK_CB(skb).eff_cap) = gr_cap_rtnetlink();
80 +       cap_t(NETLINK_CB(skb).eff_cap) = gr_cap_rtnetlink() & vx_mbcap(cap_effective);
81         return 0;
82  }
83  
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