Messages in this thread | | | Date | Tue, 01 May 2012 10:09:54 +0200 | From | Paolo Bonzini <> | Subject | Re: [PATCH for 3.4] virtio-scsi: fix TMF use-after-free |
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Il 18/04/2012 16:09, James Bottomley ha scritto: >> > Fix a race in TMF path, where cmd may have been already freed >> > by virtscsi_complete_free after waking up from the completion. > There's no may about this; the command will be freed long before the > completion waiter is awoken. The description could be clearer. > > The problem is a use after free in virtscsi_tmf because the > virtio_scsi_command is freed before the completion returns. > > The fix is to make callers specifying a completion responsible for > freeing the command in all cases.
I don't see this in the pull request, were you waiting for v2 with a better commit message?
Paolo
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