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:   Thu, 12 Nov 2020 10:07:25 +0100
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     Martin Kaiser <martin@...ser.cx>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     bcm-kernel-feedback-list@...adcom.com,
        linux-rpi-kernel@...ts.infradead.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] PCI: brcmstb: Fix race in removing chained IRQ
 handler

On Wed, 2020-11-11 at 22:53 +0100, Martin Kaiser wrote:
> Call irq_set_chained_handler_and_data() to clear the chained handler
> and the handler's data under irq_desc->lock.
> 
> See also 2cf5a03cb29d ("PCI/keystone: Fix race in installing chained
> IRQ handler").
> 
> Signed-off-by: Martin Kaiser <martin@...ser.cx>
> Acked-by: Florian Fainelli <f.fainelli@...il.com>
> ---

Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>

Thanks!

> v2:
>  - rewrite the commit message to clarify that this is a bugfix
> 
>  drivers/pci/controller/pcie-brcmstb.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
> index bea86899bd5d..7c666f4deb47 100644
> --- a/drivers/pci/controller/pcie-brcmstb.c
> +++ b/drivers/pci/controller/pcie-brcmstb.c
> @@ -606,8 +606,7 @@ static void brcm_msi_remove(struct brcm_pcie *pcie)
>  
>  	if (!msi)
>  		return;
> -	irq_set_chained_handler(msi->irq, NULL);
> -	irq_set_handler_data(msi->irq, NULL);
> +	irq_set_chained_handler_and_data(msi->irq, NULL, NULL);
>  	brcm_free_domains(msi);
>  }
>  


Download attachment "signature.asc" of type "application/pgp-signature" (489 bytes)

Powered by blists - more mailing lists