diff options
| author | Sean Paul <seanpaul@chromium.org> | 2017-05-18 09:24:30 -0400 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2017-05-18 09:24:30 -0400 |
| commit | 6b7781b42dc9bc9bcd1523b6c24b876cdda0bef3 (patch) | |
| tree | ee55c67e4ea30b9eb44f301ba0bde2e631a26162 /drivers/misc/lkdtm_bugs.c | |
| parent | 52d9d38c183bf0e09601d875ea31bb53c05dd8cf (diff) | |
| parent | e98c58e55f68f8785aebfab1f8c9a03d8de0afe1 (diff) | |
Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Picking up drm-next @ 4.12-rc1 in order to apply Michal Hocko's vmalloc patch set
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'drivers/misc/lkdtm_bugs.c')
| -rw-r--r-- | drivers/misc/lkdtm_bugs.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/misc/lkdtm_bugs.c b/drivers/misc/lkdtm_bugs.c index e3f4cd8876b5..d9028ef50fbe 100644 --- a/drivers/misc/lkdtm_bugs.c +++ b/drivers/misc/lkdtm_bugs.c @@ -8,6 +8,8 @@ #include <linux/list.h> #include <linux/refcount.h> #include <linux/sched.h> +#include <linux/sched/signal.h> +#include <linux/uaccess.h> struct lkdtm_list { struct list_head node; @@ -67,7 +69,7 @@ void lkdtm_WARNING(void) void lkdtm_EXCEPTION(void) { - *((int *) 0) = 0; + *((volatile int *) 0) = 0; } void lkdtm_LOOP(void) @@ -279,3 +281,12 @@ void lkdtm_CORRUPT_LIST_DEL(void) else pr_err("list_del() corruption not detected!\n"); } + +void lkdtm_CORRUPT_USER_DS(void) +{ + pr_info("setting bad task size limit\n"); + set_fs(KERNEL_DS); + + /* Make sure we do not keep running with a KERNEL_DS! */ + force_sig(SIGKILL, current); +} |