diff options
| author | Kees Cook <keescook@chromium.org> | 2016-10-28 10:22:25 +0200 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2017-06-30 21:00:51 +0200 |
| commit | 3859a271a003aba01e45b85c9d8b355eb7bf25f9 (patch) | |
| tree | 850c019e6a6449857e864b6a545b053ffe2f99a9 /include/net | |
| parent | ARM: Prepare for randomized task_struct (diff) | |
| download | linux-3859a271a003aba01e45b85c9d8b355eb7bf25f9.tar.xz linux-3859a271a003aba01e45b85c9d8b355eb7bf25f9.zip | |
randstruct: Mark various structs for randomization
This marks many critical kernel structures for randomization. These are
structures that have been targeted in the past in security exploits, or
contain functions pointers, pointers to function pointer tables, lists,
workqueues, ref-counters, credentials, permissions, or are otherwise
sensitive. This initial list was extracted from Brad Spengler/PaX Team's
code in the last public patch of grsecurity/PaX based on my understanding
of the code. Changes or omissions from the original code are mine and
don't reflect the original grsecurity/PaX code.
Left out of this list is task_struct, which requires special handling
and will be covered in a subsequent patch.
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/af_unix.h | 2 | ||||
| -rw-r--r-- | include/net/neighbour.h | 2 | ||||
| -rw-r--r-- | include/net/net_namespace.h | 2 | ||||
| -rw-r--r-- | include/net/sock.h | 2 |
4 files changed, 4 insertions, 4 deletions
diff --git a/include/net/af_unix.h b/include/net/af_unix.h index fd60eccb59a6..64e2a1e24a2c 100644 --- a/include/net/af_unix.h +++ b/include/net/af_unix.h @@ -36,7 +36,7 @@ struct unix_skb_parms { u32 secid; /* Security ID */ #endif u32 consumed; -}; +} __randomize_layout; #define UNIXCB(skb) (*(struct unix_skb_parms *)&((skb)->cb)) diff --git a/include/net/neighbour.h b/include/net/neighbour.h index e4dd3a214034..a62959d2b3f7 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -155,7 +155,7 @@ struct neighbour { struct rcu_head rcu; struct net_device *dev; u8 primary_key[0]; -}; +} __randomize_layout; struct neigh_ops { int family; diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index fe80bb48ab1f..a224196d16ac 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -147,7 +147,7 @@ struct net { #endif struct sock *diag_nlsk; atomic_t fnhe_genid; -}; +} __randomize_layout; #include <linux/seq_file_net.h> diff --git a/include/net/sock.h b/include/net/sock.h index f33e3d134e0b..d349297db9e9 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1113,7 +1113,7 @@ struct proto { atomic_t socks; #endif int (*diag_destroy)(struct sock *sk, int err); -}; +} __randomize_layout; int proto_register(struct proto *prot, int alloc_slab); void proto_unregister(struct proto *prot); |