On 01/13/2010 12:11 AM, [email protected] wrote:
Subject: kvm/ia64: dereference of NULL pointer in set_pal_result()
From: Roel Kluin<[email protected]>

Do not dereference a NULL pointer

diff -puN 
arch/ia64/kvm/kvm_fw.c~kvm-ia64-dereference-of-null-pointer-in-set_pal_result 
arch/ia64/kvm/kvm_fw.c
--- 
a/arch/ia64/kvm/kvm_fw.c~kvm-ia64-dereference-of-null-pointer-in-set_pal_result
+++ a/arch/ia64/kvm/kvm_fw.c
@@ -75,9 +75,11 @@ static void set_pal_result(struct kvm_vc
        struct exit_ctl_data *p;

        p = kvm_get_exit_data(vcpu);
-       if (p&&  p->exit_reason == EXIT_REASON_PAL_CALL) {
+       if (!p)
+               return;
+       if (p->exit_reason == EXIT_REASON_PAL_CALL) {
                p->u.pal_data.ret = result;
-               return ;
+               return;
        }
        INIT_PAL_STATUS_UNIMPLEMENTED(p->u.pal_data.ret);
  }


kvm_get_exit_data() cannot return a NULL pointer.

Where did this come from?

--
error compiling committee.c: too many arguments to function

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