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[Bug 1352794] [NEW] Null pointer dereference in mmu_set_spte.isra

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1352794@xxxxxxxxxxxxxxxxxx>
Date: Tue, 05 Aug 2014 14:25:09 -0000
Reply-to: Bug 1352794 <1352794@xxxxxxxxxxxxxxxxxx>
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Dear all,

We faced a kernel oops on KVM from a null pointer derefence on one of
our hypervisors (running several KVM VMs). This led us to a serie of
kernel oops affecting all the VMs and finally, the host crash. We
couldn't really establish where from the first oops was comming (in
order to reproduce the crash).

You'll find attach the extract of syslog where you have the really first
oops, and all the followings.

We're using Ubuntu 12.04LTS. We're using latest releases available on
it, including for KVM. We're using kernel 3.8 due to hardware
constraints. And we're using kernel 3.8.0-33-generic due to regressions
in newer kernels (not yet reported).

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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Null pointer dereference in mmu_set_spte.isra
https://bugs.launchpad.net/bugs/1352794
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