diff options
| author | Ingo Molnar <mingo@kernel.org> | 2015-02-19 12:06:04 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-02-19 12:31:34 +0100 |
| commit | a267b0a349bb021c010e36a2a13e1e16657b1b0f (patch) | |
| tree | 4438a10ecc864f15ce6f37c1764fffa995a9a175 /arch/x86/kernel/module.c | |
| parent | ee408b4207c8281a91f039e89d06de264d319466 (diff) | |
| parent | 4e7c22d447bb6d7e37bfe39ff658486ae78e8d77 (diff) | |
Merge branch 'tip-x86-kaslr' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp into x86/urgent
Pull ASLR and kASLR fixes from Borislav Petkov:
- Add a global flag announcing KASLR state so that relevant code can do
informed decisions based on its setting. (Jiri Kosina)
- Fix a stack randomization entropy decrease bug. (Hector Marco-Gisbert)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/module.c')
| -rw-r--r-- | arch/x86/kernel/module.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c index e69f9882bf9..c3c59a3a14a 100644 --- a/arch/x86/kernel/module.c +++ b/arch/x86/kernel/module.c @@ -32,6 +32,7 @@ #include <asm/page.h> #include <asm/pgtable.h> +#include <asm/page_types.h> #if 0 #define DEBUGP(fmt, ...) \ @@ -46,21 +47,13 @@ do { \ #ifdef CONFIG_RANDOMIZE_BASE static unsigned long module_load_offset; -static int randomize_modules = 1; /* Mutex protects the module_load_offset. */ static DEFINE_MUTEX(module_kaslr_mutex); -static int __init parse_nokaslr(char *p) -{ - randomize_modules = 0; - return 0; -} -early_param("nokaslr", parse_nokaslr); - static unsigned long int get_module_load_offset(void) { - if (randomize_modules) { + if (kaslr_enabled) { mutex_lock(&module_kaslr_mutex); /* * Calculate the module_load_offset the first time this |