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: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Wed, 27 Jul 2011 11:26:25 +0800
From:	"Jack Wang" <jack_wang@...sh.com>
To:	"'Luben Tuikov'" <ltuikov@...oo.com>,
	"'James Bottomley'" <James.Bottomley@...e.de>,
	<linux-kernel@...r.kernel.org>, <linux-scsi@...r.kernel.org>
Subject: Re: [PATCH] [SCSI] libsas: remove expander from dev list on error

 [PATCH] [SCSI] libsas: remove expander from dev list on error
> 
> If expander discovery fails (sas_discover_expander()),
> remove the expander from the port device list
> (sas_ex_discover_expander()), before freeing it. Else
> the list is corrupted and, e.g., when we attempt to send
> SMP commands to other devices, the kernel oopses.
> 
> Signed-off-by: Luben Tuikov <ltuikov@...oo.com>
> ---
>  drivers/scsi/libsas/sas_expander.c |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/scsi/libsas/sas_expander.c
> b/drivers/scsi/libsas/sas_expander.c
> index 874e29d..f84084b 100644
> --- a/drivers/scsi/libsas/sas_expander.c
> +++ b/drivers/scsi/libsas/sas_expander.c
> @@ -849,6 +849,9 @@ static struct domain_device *sas_ex_discover_expander(
> 
>      res = sas_discover_expander(child);
>      if (res) {
> +        spin_lock_irq(&parent->port->dev_list_lock);
> +        list_del(&child->dev_list_node);
> +        spin_unlock_irq(&parent->port->dev_list_lock);
>          kfree(child);
>          return NULL;
>      }
> --
[Jack Wang] Looks reasonable, thanks for fix this.
You can add my Reviewed-by: Jack Wang <jack_wang@...sh.com> if needed.

--
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/

Powered by blists - more mailing lists