Messages in this thread | | | Date | Sat, 25 Dec 2010 22:35:20 +0100 (CET) | From | Jesper Juhl <> | Subject | Re: [PATCH] Ceph: Fix a use-after-free bug in ceph_destroy_client(). |
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On Sat, 25 Dec 2010, richard -rw- weinberger wrote:
> On Sat, Dec 25, 2010 at 10:24 PM, Jesper Juhl <jj@chaosbits.net> wrote: > > On Sat, 25 Dec 2010, richard -rw- weinberger wrote: > > > >> On Sat, Dec 25, 2010 at 7:17 PM, Jesper Juhl <jj@chaosbits.net> wrote: > >> > Hello, > >> > > >> > In net/ceph/ceph_common.c::ceph_destroy_client() the pointer 'client' is > >> > freed by kfree() and subsequently used in a call to dout() - use after > >> > free bug. > >> > >> Not really. %p reads only the address of "client". > >> kfree() does not alter this address. > >> > > > > Ok, I see your point and you are correct. But still, the patch does not > > change behaviour and it makes it absolutely clear that there's no > > use-after-free bug, so it might still have merit... or? > > Your patch does not fix a bug. > I would say it's a style fix. > At this point in time I'd agree. :-)
-- Jesper Juhl <jj@chaosbits.net> http://www.chaosbits.net/ Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please.
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