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kasan: move and simplify kasan_report_async

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Place kasan_report_async() next to the other main reporting routines.
Also simplify printed information.

Link: https://lkml.kernel.org/r/52d942ef3ffd29bdfa225bbe8e327bc5bda7ab09.1646237226.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrey Konovalov 2022-03-24 18:12:57 -07:00 committed by Linus Torvalds
parent 31c65110b9
commit bb2f967ce2
1 changed files with 14 additions and 14 deletions
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28
mm/kasan/report.c
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@ -392,20 +392,6 @@ static bool report_enabled(void)
return !test_and_set_bit(KASAN_BIT_REPORTED, &kasan_flags);
}
#ifdef CONFIG_KASAN_HW_TAGS
void kasan_report_async(void)
{
unsigned long flags;
start_report(&flags, false);
pr_err("BUG: KASAN: invalid-access\n");
pr_err("Asynchronous mode enabled: no access details available\n");
pr_err("\n");
dump_stack_lvl(KERN_ERR);
end_report(&flags, NULL);
}
#endif /* CONFIG_KASAN_HW_TAGS */
static void print_report(struct kasan_access_info *info)
{
void *tagged_addr = info->access_addr;
@ -477,6 +463,20 @@ out:
return ret;
}
#ifdef CONFIG_KASAN_HW_TAGS
void kasan_report_async(void)
{
unsigned long flags;
start_report(&flags, false);
pr_err("BUG: KASAN: invalid-access\n");
pr_err("Asynchronous fault: no details available\n");
pr_err("\n");
dump_stack_lvl(KERN_ERR);
end_report(&flags, NULL);
}
#endif /* CONFIG_KASAN_HW_TAGS */
#ifdef CONFIG_KASAN_INLINE
/*
* With CONFIG_KASAN_INLINE, accesses to bogus pointers (outside the high