lkml.org 
[lkml]   [2022]   [Jul]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2] KVM: x86: Fully initialize 'struct kvm_lapic_irq' in kvm_pv_kick_cpu_op()
On Fri, Jul 08, 2022, Vitaly Kuznetsov wrote:
> 'vector' and 'trig_mode' fields of 'struct kvm_lapic_irq' are left
> uninitialized in kvm_pv_kick_cpu_op(). While these fields are normally
> not needed for APIC_DM_REMRD, they're still referenced by
> __apic_accept_irq() for trace_kvm_apic_accept_irq(). Fully initialize
> the structure to avoid consuming random stack memory.
>
> Fixes: a183b638b61c ("KVM: x86: make apic_accept_irq tracepoint more generic")
> Reported-by: syzbot+d6caa905917d353f0d07@syzkaller.appspotmail.com
> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
> ---

Reviewed-by: Sean Christopherson <seanjc@google.com>

\
 
 \ /
  Last update: 2022-07-08 17:59    [W:8.444 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site