diff options
| author | Sam Bobroff <sam.bobroff@au1.ibm.com> | 2014-09-19 09:40:41 +1000 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2014-10-08 11:10:11 +0200 |
| commit | d731c6c9b17b8a6b471981b3e310235049190034 (patch) | |
| tree | 5179243409bd517d6c23790651e6c7b0d0d8d299 | |
| parent | 699d6a59f5d9aeddaf74ee4f9f81c51d5860f12c (diff) | |
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>
(cherry picked from commit 27fbe64bfa63cfb9da025975b59d96568caa2d53)
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
| -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 0733a2a51d0b..4bdadf1a6754 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1748,7 +1748,7 @@ bool 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; |