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Message-Id: <20170302134851.101218-6-andreyknvl@google.com>
Date: Thu, 2 Mar 2017 14:48:47 +0100
From: Andrey Konovalov <andreyknvl@...gle.com>
To: Andrey Ryabinin <aryabinin@...tuozzo.com>,
Alexander Potapenko <glider@...gle.com>,
Dmitry Vyukov <dvyukov@...gle.com>, kasan-dev@...glegroups.com,
linux-mm@...ck.org, linux-kernel@...r.kernel.org
Cc: Andrey Konovalov <andreyknvl@...gle.com>
Subject: [PATCH v2 5/9] kasan: change report header
Change report header format from:
BUG: KASAN: use-after-free in unwind_get_return_address+0x28a/0x2c0 at addr ffff880069437950
Read of size 8 by task insmod/3925
to:
BUG: KASAN: use-after-free in unwind_get_return_address+0x28a/0x2c0
Read of size 8 at addr ffff880069437950 by task insmod/3925
The exact access address is not usually important, so move it to the
second line. This also makes the header look visually balanced.
Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
---
mm/kasan/report.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 8b0b27eb37cd..945d0e13e8a4 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -130,11 +130,11 @@ static void print_error_description(struct kasan_access_info *info)
{
const char *bug_type = get_bug_type(info);
- pr_err("BUG: KASAN: %s in %pS at addr %p\n",
- bug_type, (void *)info->ip, info->access_addr);
- pr_err("%s of size %zu by task %s/%d\n",
+ pr_err("BUG: KASAN: %s in %pS\n",
+ bug_type, (void *)info->ip);
+ pr_err("%s of size %zu at addr %p by task %s/%d\n",
info->is_write ? "Write" : "Read", info->access_size,
- current->comm, task_pid_nr(current));
+ info->access_addr, current->comm, task_pid_nr(current));
}
static inline bool kernel_or_module_addr(const void *addr)
--
2.12.0.rc1.440.g5b76565f74-goog
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