The patch titled
Subject: kasan: move kasan_report() into report.c
has been added to the -mm tree. Its filename is
kasan-move-kasan_report-into-reportc.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kasan-move-kasan_report-into-reportc.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kasan-move-kasan_report-into-reportc.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Subject: kasan: move kasan_report() into report.c
The kasan_report() functions belongs to report.c, as it's a common
functions that does error reporting.
Link: http://lkml.kernel.org/r/78a81fde6eeda9db72a7fd55fbc33173a515e4b1.1589297433.git.andreyknvl@xxxxxxxxxx
Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Reported-by: Leon Romanovsky <leon@xxxxxxxxxx>
Tested-by: Leon Romanovsky <leon@xxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Leon Romanovsky <leonro@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kasan/common.c | 19 -------------------
mm/kasan/report.c | 22 ++++++++++++++++++++--
2 files changed, 20 insertions(+), 21 deletions(-)
--- a/mm/kasan/common.c~kasan-move-kasan_report-into-reportc
+++ a/mm/kasan/common.c
@@ -33,7 +33,6 @@
#include <linux/types.h>
#include <linux/vmalloc.h>
#include <linux/bug.h>
-#include <linux/uaccess.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
@@ -613,24 +612,6 @@ void kasan_free_shadow(const struct vm_s
}
#endif
-extern void __kasan_report(unsigned long addr, size_t size, bool is_write, unsigned long ip);
-extern bool report_enabled(void);
-
-bool kasan_report(unsigned long addr, size_t size, bool is_write, unsigned long ip)
-{
- unsigned long flags = user_access_save();
- bool ret = false;
-
- if (likely(report_enabled())) {
- __kasan_report(addr, size, is_write, ip);
- ret = true;
- }
-
- user_access_restore(flags);
-
- return ret;
-}
-
#ifdef CONFIG_MEMORY_HOTPLUG
static bool shadow_mapped(unsigned long addr)
{
--- a/mm/kasan/report.c~kasan-move-kasan_report-into-reportc
+++ a/mm/kasan/report.c
@@ -29,6 +29,7 @@
#include <linux/kasan.h>
#include <linux/module.h>
#include <linux/sched/task_stack.h>
+#include <linux/uaccess.h>
#include <asm/sections.h>
@@ -454,7 +455,7 @@ static void print_shadow_for_address(con
}
}
-bool report_enabled(void)
+static bool report_enabled(void)
{
if (current->kasan_depth)
return false;
@@ -479,7 +480,8 @@ void kasan_report_invalid_free(void *obj
end_report(&flags);
}
-void __kasan_report(unsigned long addr, size_t size, bool is_write, unsigned long ip)
+static void __kasan_report(unsigned long addr, size_t size, bool is_write,
+ unsigned long ip)
{
struct kasan_access_info info;
void *tagged_addr;
@@ -518,6 +520,22 @@ void __kasan_report(unsigned long addr,
end_report(&flags);
}
+bool kasan_report(unsigned long addr, size_t size, bool is_write,
+ unsigned long ip)
+{
+ unsigned long flags = user_access_save();
+ bool ret = false;
+
+ if (likely(report_enabled())) {
+ __kasan_report(addr, size, is_write, ip);
+ ret = true;
+ }
+
+ user_access_restore(flags);
+
+ return ret;
+}
+
#ifdef CONFIG_KASAN_INLINE
/*
* With CONFIG_KASAN_INLINE, accesses to bogus pointers (outside the high
_
Patches currently in -mm which might be from andreyknvl@xxxxxxxxxx are
kcov-cleanup-debug-messages.patch
kcov-fix-potential-use-after-free-in-kcov_remote_start.patch
kcov-move-t-kcov-assignments-into-kcov_start-stop.patch
kcov-move-t-kcov_sequence-assignment.patch
kcov-use-t-kcov_mode-as-enabled-indicator.patch
kcov-collect-coverage-from-interrupts.patch
usb-core-kcov-collect-coverage-from-usb-complete-callback.patch
kasan-consistently-disable-debugging-features.patch
kasan-add-missing-functions-declarations-to-kasanh.patch
kasan-move-kasan_report-into-reportc.patch
