KVM: apic: avoid calculating pending eoi from an uninitialized val

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commit 23520b2def upstream.

When pv_eoi_get_user() fails, 'val' may remain uninitialized and the return
value of pv_eoi_get_pending() becomes random. Fix the issue by initializing
the variable.

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Miaohe Lin 2020-02-21 22:04:46 +08:00 • committed by Greg Kroah-Hartman

parent 15def96af9

commit 7cad6ccee6

1 changed files with 3 additions and 1 deletions

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arch/x86/kvm/lapic.c

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