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| author |   Sam Bobroff <sam.bobroff@au1.ibm.com> | 2014-09-19 09:40:41 +1000 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2014-09-22 13:21:29 +0200 |
| commit | 27fbe64bfa63cfb9da025975b59d96568caa2d53 (patch) | |
| tree | a7cc2aac710c41561e5eed5dd296eda2a777820b /virt | |
| parent | KVM: check for !is_zero_pfn() in kvm_is_mmio_pfn() (diff) | |
| download | linux-dev-27fbe64bfa63cfb9da025975b59d96568caa2d53.tar.xz linux-dev-27fbe64bfa63cfb9da025975b59d96568caa2d53.zip | |
KVM: correct null pid check in kvm_vcpu_yield_to()
Correct a simple mistake of checking the wrong variable
before a dereference, resulting in the dereference not being
properly protected by rcu_dereference().
Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/kvm_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 96ec6226e4ab..95519bc959ed 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1725,7 +1725,7 @@ int kvm_vcpu_yield_to(struct kvm_vcpu *target) rcu_read_lock(); pid = rcu_dereference(target->pid); if (pid) - task = get_pid_task(target->pid, PIDTYPE_PID); + task = get_pid_task(pid, PIDTYPE_PID); rcu_read_unlock(); if (!task) return ret; |