| Subject | Re: [PATCH 4.4 20/41] bsg-lib: dont free job in bsg_prepare_job | From | Ben Hutchings <> | Date | Mon, 16 Oct 2017 17:32:28 +0100 |
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On Tue, 2017-10-03 at 14:21 +0200, Greg Kroah-Hartman wrote: > 4.4-stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Christoph Hellwig <hch@lst.de> > > commit f507b54dccfd8000c517d740bc45f20c74532d18 upstream. > > The job structure is allocated as part of the request, so we should not > free it in the error path of bsg_prepare_job.
That function doesn't exist here (it was introduced in 4.13). Instead, this backport has modified bsg_create_job(), creating a leak. Please revert this on the 3.18, 4.4 and 4.9 stable branches.
Ben.
> Signed-off-by: Christoph Hellwig <hch@lst.de> > Reviewed-by: Ming Lei <ming.lei@redhat.com> > Signed-off-by: Jens Axboe <axboe@kernel.dk> > Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > > --- > block/bsg-lib.c | 1 - > 1 file changed, 1 deletion(-) > > --- a/block/bsg-lib.c > +++ b/block/bsg-lib.c > @@ -147,7 +147,6 @@ static int bsg_create_job(struct device > failjob_rls_rqst_payload: > kfree(job->request_payload.sg_list); > failjob_rls_job: > - kfree(job); > return -ENOMEM; > } > > > > -- Ben Hutchings Software Developer, Codethink Ltd.
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