diff options
| author | Laura Abbott <labbott@redhat.com> | 2017-02-06 16:31:58 -0800 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2017-02-07 12:32:52 -0800 |
| commit | 0f5bf6d0afe4be6e1391908ff2d6dc9730e91550 (patch) | |
| tree | 12c10057175483fe3f3720b37b7ffb5b73241b2a /kernel | |
| parent | ad21fc4faa2a1f919bac1073b885df9310dbc581 (diff) | |
arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX
Both of these options are poorly named. The features they provide are
necessary for system security and should not be considered debug only.
Change the names to CONFIG_STRICT_KERNEL_RWX and
CONFIG_STRICT_MODULE_RWX to better describe what these options do.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Jessica Yu <jeyu@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/configs/android-recommended.config | 2 | ||||
| -rw-r--r-- | kernel/module.c | 6 | ||||
| -rw-r--r-- | kernel/power/hibernate.c | 2 | ||||
| -rw-r--r-- | kernel/power/power.h | 4 | ||||
| -rw-r--r-- | kernel/power/snapshot.c | 4 |
5 files changed, 9 insertions, 9 deletions
diff --git a/kernel/configs/android-recommended.config b/kernel/configs/android-recommended.config index 297756be369c..99127edc5204 100644 --- a/kernel/configs/android-recommended.config +++ b/kernel/configs/android-recommended.config @@ -11,7 +11,7 @@ CONFIG_BLK_DEV_LOOP=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=8192 CONFIG_COMPACTION=y -CONFIG_DEBUG_RODATA=y +CONFIG_STRICT_KERNEL_RWX=y CONFIG_DM_CRYPT=y CONFIG_DM_UEVENT=y CONFIG_DM_VERITY=y diff --git a/kernel/module.c b/kernel/module.c index 5088784c0cf9..e71478569273 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -74,9 +74,9 @@ /* * Modules' sections will be aligned on page boundaries * to ensure complete separation of code and data, but - * only when CONFIG_DEBUG_SET_MODULE_RONX=y + * only when CONFIG_STRICT_MODULE_RWX=y */ -#ifdef CONFIG_DEBUG_SET_MODULE_RONX +#ifdef CONFIG_STRICT_MODULE_RWX # define debug_align(X) ALIGN(X, PAGE_SIZE) #else # define debug_align(X) (X) @@ -1847,7 +1847,7 @@ static void mod_sysfs_teardown(struct module *mod) mod_sysfs_fini(mod); } -#ifdef CONFIG_DEBUG_SET_MODULE_RONX +#ifdef CONFIG_STRICT_MODULE_RWX /* * LKM RO/NX protection: protect module's text/ro-data * from modification and any data from execution. diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index b26dbc48c75b..86385af1080f 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -1156,7 +1156,7 @@ static int __init hibernate_setup(char *str) } else if (!strncmp(str, "no", 2)) { noresume = 1; nohibernate = 1; - } else if (IS_ENABLED(CONFIG_DEBUG_RODATA) + } else if (IS_ENABLED(CONFIG_STRICT_KERNEL_RWX) && !strncmp(str, "protect_image", 13)) { enable_restore_image_protection(); } diff --git a/kernel/power/power.h b/kernel/power/power.h index 1dfa0da827d3..7fdc40d31b7d 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -61,12 +61,12 @@ extern int hibernation_snapshot(int platform_mode); extern int hibernation_restore(int platform_mode); extern int hibernation_platform_enter(void); -#ifdef CONFIG_DEBUG_RODATA +#ifdef CONFIG_STRICT_KERNEL_RWX /* kernel/power/snapshot.c */ extern void enable_restore_image_protection(void); #else static inline void enable_restore_image_protection(void) {} -#endif /* CONFIG_DEBUG_RODATA */ +#endif /* CONFIG_STRICT_KERNEL_RWX */ #else /* !CONFIG_HIBERNATION */ diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index 2d8e2b227db8..905d5bbd595f 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -38,7 +38,7 @@ #include "power.h" -#ifdef CONFIG_DEBUG_RODATA +#ifdef CONFIG_STRICT_KERNEL_RWX static bool hibernate_restore_protection; static bool hibernate_restore_protection_active; @@ -73,7 +73,7 @@ static inline void hibernate_restore_protection_begin(void) {} static inline void hibernate_restore_protection_end(void) {} static inline void hibernate_restore_protect_page(void *page_address) {} static inline void hibernate_restore_unprotect_page(void *page_address) {} -#endif /* CONFIG_DEBUG_RODATA */ +#endif /* CONFIG_STRICT_KERNEL_RWX */ static int swsusp_page_is_free(struct page *); static void swsusp_set_page_forbidden(struct page *); |