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authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 20:38:22 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 20:38:22 +0100
commite30aee9e10bb5168579e047f05c3d13d09e23356 (patch)
tree12371bdcd52d2427cad838201997479e31b6a9c9 /drivers/misc/lkdtm_bugs.c
parentMerge tag 'usb-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gre... (diff)
parentgoldfish: Sanitize the broken interrupt handler (diff)
downloadlinux-e30aee9e10bb5168579e047f05c3d13d09e23356.tar.xz
linux-e30aee9e10bb5168579e047f05c3d13d09e23356.zip
Merge tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here is the big char/misc driver patchset for 4.11-rc1. Lots of different driver subsystems updated here: rework for the hyperv subsystem to handle new platforms better, mei and w1 and extcon driver updates, as well as a number of other "minor" driver updates. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (169 commits) goldfish: Sanitize the broken interrupt handler x86/platform/goldfish: Prevent unconditional loading vmbus: replace modulus operation with subtraction vmbus: constify parameters where possible vmbus: expose hv_begin/end_read vmbus: remove conditional locking of vmbus_write vmbus: add direct isr callback mode vmbus: change to per channel tasklet vmbus: put related per-cpu variable together vmbus: callback is in softirq not workqueue binder: Add support for file-descriptor arrays binder: Add support for scatter-gather binder: Add extra size to allocator binder: Refactor binder_transact() binder: Support multiple /dev instances binder: Deal with contexts in debugfs binder: Support multiple context managers binder: Split flat_binder_object auxdisplay: ht16k33: remove private workqueue auxdisplay: ht16k33: rework input device initialization ...
Diffstat (limited to 'drivers/misc/lkdtm_bugs.c')
-rw-r--r--drivers/misc/lkdtm_bugs.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/misc/lkdtm_bugs.c b/drivers/misc/lkdtm_bugs.c
index cba0837aee2e..e3f4cd8876b5 100644
--- a/drivers/misc/lkdtm_bugs.c
+++ b/drivers/misc/lkdtm_bugs.c
@@ -81,12 +81,17 @@ void lkdtm_OVERFLOW(void)
(void) recursive_loop(recur_count);
}
+static noinline void __lkdtm_CORRUPT_STACK(void *stack)
+{
+ memset(stack, 'a', 64);
+}
+
noinline void lkdtm_CORRUPT_STACK(void)
{
/* Use default char array length that triggers stack protection. */
char data[8];
+ __lkdtm_CORRUPT_STACK(&data);
- memset((void *)data, 'a', 64);
pr_info("Corrupted stack with '%16s'...\n", data);
}