linux-kernel - [PATCH v2 0/2] mm: Fix kernel BUG in __check_heap

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Date:   Sat, 25 Dec 2021 20:06:19 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Kees Cook <keescook@...omium.org>,
        Laura Abbott <labbott@...hat.com>,
        "Mark Rutland" <mark.rutland@....com>, <linux-mm@...ck.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        <linux-kernel@...r.kernel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        "Paul Mackerras" <paulus@...ba.org>,
        <linuxppc-dev@...ts.ozlabs.org>
CC:     Nicholas Piggin <npiggin@...il.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH v2 0/2] mm: Fix kernel BUG in __check_heap_object() on PowerPC64

v2:
- Fix powerpc virt_addr_valid() instead of workaround in
  check_heap_object(), suggested by Christophe and Nicholas
- Add WARN_ON in check_heap_object() incase of virt_addr_valid is
  insufficient on some archs

Kefeng Wang (2):
  powerpc: Fix virt_addr_valid() check
  mm: usercopy: Warn vmalloc/module address in check_heap_object()

 arch/powerpc/include/asm/page.h | 5 ++++-
 mm/usercopy.c                   | 2 ++
 2 files changed, 6 insertions(+), 1 deletion(-)

-- 
2.26.2