From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: <arnd@arndb.de>, <linux-arch@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linuxppc-dev@lists.ozlabs.org>,
<rostedt@goodmis.org>, <mingo@redhat.com>, <davem@davemloft.net>,
<ast@kernel.org>, <ryabinin.a.a@gmail.com>,
<akpm@linux-foundation.org>
Cc: <mpe@ellerman.id.au>, <benh@kernel.crashing.org>,
<paulus@samba.org>, <bpf@vger.kernel.org>,
Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: [PATCH v3 8/9] extable: Use is_kernel_text() helper
Date: Sun, 26 Sep 2021 15:20:47 +0800 [thread overview]
Message-ID: <20210926072048.190336-9-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20210926072048.190336-1-wangkefeng.wang@huawei.com>
The core_kernel_text() should check the gate area, as it is part
of kernel text range.
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
kernel/extable.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/kernel/extable.c b/kernel/extable.c
index 98ca627ac5ef..0ba383d850ff 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -64,8 +64,7 @@ const struct exception_table_entry *search_exception_tables(unsigned long addr)
int notrace core_kernel_text(unsigned long addr)
{
- if (addr >= (unsigned long)_stext &&
- addr < (unsigned long)_etext)
+ if (is_kernel_text(addr))
return 1;
if (system_state < SYSTEM_RUNNING &&
--
2.26.2
next prev parent reply other threads:[~2021-09-26 7:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-26 7:20 [PATCH v3 0/9] sections: Unify kernel sections range check and use Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 1/9] kallsyms: Remove arch specific text and data check Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 2/9] kallsyms: Fix address-checks for kernel related range Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 3/9] sections: Move and rename core_kernel_data() to is_kernel_core_data() Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 4/9] sections: Move is_kernel_inittext() into sections.h Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 5/9] x86: mm: Rename __is_kernel_text() to is_x86_32_kernel_text() Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 6/9] sections: Provide internal __is_kernel() and __is_kernel_text() helper Kefeng Wang
2021-09-26 7:20 ` [PATCH v3 7/9] mm: kasan: Use is_kernel() helper Kefeng Wang
2021-09-26 7:20 ` Kefeng Wang [this message]
2021-09-26 7:20 ` [PATCH v3 9/9] powerpc/mm: Use is_kernel_text() and is_kernel_inittext() helper Kefeng Wang
2021-09-28 17:51 ` Christophe Leroy
2021-09-29 1:14 ` Kefeng Wang
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