From: Catalin Marinas <catalin.marinas@arm.com>
To: Wei Li <liwei391@huawei.com>
Cc: mark.rutland@arm.com, julien.thierry@arm.com,
will.deacon@arm.com, james.morse@arm.com,
huawei.libin@huawei.com, guohanjun@huawei.com,
labbott@redhat.com, linux-arm-kernel@lists.infradead.org,
alex.popov@linux.com
Subject: Re: [PATCH] arm64: fix wrong check of on_sdei_stack in nmi context
Date: Tue, 2 Apr 2019 18:13:50 +0100 [thread overview]
Message-ID: <20190402171349.mmzbp6jateh5reh6@mbp> (raw)
In-Reply-To: <20190401035557.22191-1-liwei391@huawei.com>
On Mon, Apr 01, 2019 at 11:55:57AM +0800, Wei Li wrote:
> When doing unwind_frame() in the context of pseudo nmi (need enable
> CONFIG_ARM64_PSEUDO_NMI), reaching the botton of the stack (fp == 0,
> pc != 0), function on_sdei_stack() will return true while the sdei acpi
> table is not inited in fact. This will cause a "NULL pointer dereference"
> oops when going on.
>
> Signed-off-by: Wei Li <liwei391@huawei.com>
Thanks. I'll queue it for -rc4.
--
Catalin
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prev parent reply other threads:[~2019-04-02 17:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-01 3:55 [PATCH] arm64: fix wrong check of on_sdei_stack in nmi context Wei Li
2019-04-01 9:49 ` Julien Thierry
2019-04-01 10:32 ` Heyi Guo
2019-04-02 17:13 ` Catalin Marinas [this message]
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