linux-kernel - Re: [PATCH] genirq: fix incorrect proc spurious output

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 30 Nov 2010 17:08:13 +0800
From:	Yong Zhang <yong.zhang0@...il.com>
To:	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>
Cc:	tglx@...utronix.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] genirq: fix incorrect proc spurious output

2010/11/30 Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>:
> Fix the problem that all the /proc/irq/XX/spurious files shows the IRQ
> 0 information.
>
> Current irq_spurious_proc_open() passes on NULL as the 3rd argument,
> which is used as an IRQ number in irq_spurious_proc_show(), to the
> single_open(). Because of this, all the /proc/irq/XX/spurious file
> shows IRQ 0 information regardless of the IRQ number.
>
> To fix the problem, irq_spurious_proc_open() must pass on the
> appropreate data (IRQ number) to single_open().
>
> Signed-off-by: Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>

Looks good.

Reviewed-by: Yong Zhang <yong.zhang0@...il.com>

BTW, it's introduced by a1afb6371bb5341057056194d1168753f6d77242
So should we Cc'ing stable?

>
> ---
>  kernel/irq/proc.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: linux-next-20101125/kernel/irq/proc.c
> ===================================================================
> --- linux-next-20101125.orig/kernel/irq/proc.c
> +++ linux-next-20101125/kernel/irq/proc.c
> @@ -214,7 +214,7 @@ static int irq_spurious_proc_show(struct
>
>  static int irq_spurious_proc_open(struct inode *inode, struct file *file)
>  {
> -       return single_open(file, irq_spurious_proc_show, NULL);
> +       return single_open(file, irq_spurious_proc_show, PDE(inode)->data);
>  }
>
>  static const struct file_operations irq_spurious_proc_fops = {
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@...r.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/