linux-kernel - Re: [PATCH v2 0/2] block,scsi: fixup blk_get

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Message-ID: <x49oaxf4mfo.fsf@segfault.boston.devel.redhat.com>
Date:	Thu, 26 Jun 2014 13:20:43 -0400
From:	Jeff Moyer <jmoyer@...hat.com>
To:	Jens Axboe <axboe@...nel.dk>
Cc:	Joe Lawrence <joe.lawrence@...atus.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/2] block,scsi: fixup blk_get_request dead queue scenarios

Jens Axboe <axboe@...nel.dk> writes:

> On 2014-06-26 10:08, Jeff Moyer wrote:
>> Joe Lawrence <joe.lawrence@...atus.com> writes:
>>
>>> v1->v2: incorporate Jeff's feedback in bsg_map_hdr() and Reviewed-by
>>>          tags.
>>>
>>> Joe Lawrence (2):
>>>    block,scsi: verify return pointer from blk_get_request
>>>    block,scsi: convert and handle ERR_PTR from blk_get_request
>>
>> Jens,
>>
>> Can you pick this series up?  It actually fixes a NULL pointer
>> dereference that can happen if (for example) a usb optical drive is
>> removed while an application is using it.
>
> Yeah I'll pick it up, opening up the 3.17 branches soon.

Thanks, Jens.  Joe, the patches don't apply anymore... would you mind
sending an updated set so Jens doesn't have to do the fixups?  I think
you also need to convert blk_mq_alloc_request, I didn't see that in your
patch.

Thanks!
Jeff
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