kasan: call print_report from kasan_report_invalid_free
authorAndrey Konovalov <andreyknvl@google.com>
Fri, 25 Mar 2022 01:12:55 +0000 (18:12 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 25 Mar 2022 02:06:49 +0000 (19:06 -0700)
commit31c65110b90c76153b41b9b7e22c361ff2fb4525
tree2e2ddbd6038acaf135cfdc4a23b7f38d03f7929a
parentbe8631a17620ccf3d4fca74a6d6a218737e5b9cc
kasan: call print_report from kasan_report_invalid_free

Call print_report() in kasan_report_invalid_free() instead of calling
printing functions directly.  Compared to the existing implementation of
kasan_report_invalid_free(), print_report() makes sure that the buggy
address has metadata before printing it.

The change requires adding a report type field into kasan_access_info and
using it accordingly.

kasan_report_async() is left as is, as using print_report() will only
complicate the code.

Link: https://lkml.kernel.org/r/9ea6f0604c5d2e1fb28d93dc6c44232c1f8017fe.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>
mm/kasan/kasan.h
mm/kasan/report.c