From: Toshi Kani <toshi.kani@hp.com>
To: Tang Chen <tangchen@cn.fujitsu.com>
Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
lenb@kernel.org, rjw@sisk.pl, liwanp@linux.vnet.ibm.com,
tj@kernel.org, akpm@linux-foundation.org, x86@kernel.org,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org
Subject: Re: [PATCH 5/6] acpi: Check if @id is NULL in acpi_table_parse()
Date: Mon, 19 Aug 2013 13:29:03 -0600 [thread overview]
Message-ID: <1376940543.10300.473.camel@misato.fc.hp.com> (raw)
In-Reply-To: <1376636809-10159-6-git-send-email-tangchen@cn.fujitsu.com>
On Fri, 2013-08-16 at 15:06 +0800, Tang Chen wrote:
> strncmp() does not check if the params are NULL. In acpi_table_parse(),
> if @id is NULL, the kernel will panic.
>
> Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
-Toshi
> ---
> drivers/acpi/tables.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
> index d67a1fe..5a5263b 100644
> --- a/drivers/acpi/tables.c
> +++ b/drivers/acpi/tables.c
> @@ -293,7 +293,7 @@ int __init acpi_table_parse(char *id, acpi_tbl_table_handler handler)
> if (acpi_disabled)
> return -ENODEV;
>
> - if (!handler)
> + if (!id || !handler)
> return -EINVAL;
>
> if (strncmp(id, ACPI_SIG_MADT, 4) == 0)
next prev parent reply other threads:[~2013-08-19 19:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-16 7:06 [PATCH 0/6] acpi: Fix and cleanup in acpi Tang Chen
2013-08-16 7:06 ` [PATCH 1/6] acpi, numa, mem_hotplug: Kill save_add_info() Tang Chen
2013-08-19 18:48 ` Toshi Kani
2013-08-16 7:06 ` [PATCH 2/6] acpi, numa, mem_hotplug: Print Hot-Pluggable Field in SRAT Tang Chen
2013-08-19 18:48 ` Toshi Kani
2013-08-16 7:06 ` [PATCH 3/6] acpi cleanup: Use pr_info() instead of printk() in arch/x86/mm/srat.c Tang Chen
2013-08-16 7:25 ` Joe Perches
2013-08-16 7:58 ` Tang Chen
2013-08-16 10:11 ` Tang Chen
2013-08-16 10:11 ` [PATCH 4/6] acpi cleanup: Use pr_err() " Tang Chen
2013-08-19 18:53 ` [PATCH 3/6] acpi cleanup: Use pr_info() " Toshi Kani
2013-08-16 7:06 ` [PATCH 4/6] acpi cleanup: Use pr_err() " Tang Chen
2013-08-16 7:06 ` [PATCH 5/6] acpi: Check if @id is NULL in acpi_table_parse() Tang Chen
2013-08-19 19:29 ` Toshi Kani [this message]
2013-08-16 7:06 ` [PATCH 6/6] acpi: Return -ENOENT in acpi_table_parse() and fix wrong comment Tang Chen
2013-08-19 19:29 ` Toshi Kani
2013-08-20 1:19 ` Tang Chen
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