On Thu, Aug 5, 2021 at 8:20 PM Greg Kroah-Hartman
<gre...@linuxfoundation.org> wrote:
>
> On Wed, Jul 21, 2021 at 07:11:31PM +0800, Dongliang Mu wrote:
> > The function tpci200_register called by tpci200_install and
> > tpci200_unregister called by tpci200_uninstall are in pair. However,
> > tpci200_unregister has some cleanup operations not in the
> > tpci200_register. So the error handling code of tpci200_pci_probe has
> > many different double free issues.
> >
> > Fix this problem by moving those cleanup operations out of
> > tpci200_unregister, into tpci200_pci_remove and reverting
> > the previous commit 9272e5d0028d
> >
> > Reported-by: Dongliang Mu <mudonglianga...@gmail.com>
> > Fixes: 9272e5d0028d ("ipack/carriers/tpci200: Fix a double free in
> > tpci200_pci_probe")
> > Signed-off-by: Dongliang Mu <mudonglianga...@gmail.com>
> > ---
> > drivers/ipack/carriers/tpci200.c | 35 ++++++++++++++++----------------
> > 1 file changed, 17 insertions(+), 18 deletions(-)
>
> This needs to be applied to the tree now, and should not depend on your
> patch 1/3 here as it is a bugfix. Please redo this series and send 2,
> one to be merged for 5.14-final and to go to the stable kernels, and a
> separate "clean up things" series that can wait until 5.15-rc1.
No problem. I will send a separate fix.
BTW, how about the PATCH 3/3 in this series [1]? It does not depend on
PATCH 1/3, however, it does not include the fix to memleak, but also
moves the unregister function. Shall I send it separately?
[1] https://lkml.org/lkml/2021/7/21/370
>
> thanks,
>
> greg k-h
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