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authorKees Cook <keescook@chromium.org>2016-10-28 11:22:25 +0300
committerKees Cook <keescook@chromium.org>2017-06-30 22:00:51 +0300
commit3859a271a003aba01e45b85c9d8b355eb7bf25f9 (patch)
tree850c019e6a6449857e864b6a545b053ffe2f99a9 /fs/proc/internal.h
parentffa47aa678cfaa9b88e8a26cfb115b4768325121 (diff)
downloadlinux-3859a271a003aba01e45b85c9d8b355eb7bf25f9.tar.xz
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 'fs/proc/internal.h')
-rw-r--r--fs/proc/internal.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index c5ae09b6c726..07b16318223f 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -51,7 +51,7 @@ struct proc_dir_entry {
spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */
u8 namelen;
char name[];
-};
+} __randomize_layout;
union proc_op {
int (*proc_get_link)(struct dentry *, struct path *);
@@ -70,7 +70,7 @@ struct proc_inode {
struct list_head sysctl_inodes;
const struct proc_ns_operations *ns_ops;
struct inode vfs_inode;
-};
+} __randomize_layout;
/*
* General functions
@@ -279,7 +279,7 @@ struct proc_maps_private {
#ifdef CONFIG_NUMA
struct mempolicy *task_mempolicy;
#endif
-};
+} __randomize_layout;
struct mm_struct *proc_mem_open(struct inode *inode, unsigned int mode);