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SubjectRe: hugetlb: NULL ptr deref in region_truncate
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On Sun, Sep 8, 2013 at 10:46 PM, Sasha Levin <sasha.levin@oracle.com> wrote:
> Hi all,
>
> While fuzzing with trinity inside a KVM tools guest, running latest -next
> kernel, I've
> stumbled on the following:
>
> [ 998.281867] BUG: unable to handle kernel NULL pointer dereference at
> 0000000000000274
> [ 998.283333] IP: [<ffffffff812707c4>] region_truncate+0x64/0xd0
> [ 998.284288] PGD 0
> [ 998.284717] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
> [ 998.286506] Modules linked in:
> [ 998.287101] CPU: 88 PID: 24650 Comm: trinity-child85 Tainted: G B W
> 3.11.0-next-20130906-sasha #3985

* 'B' - System has hit bad_page?


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