Commits
Paolo Bonzini committed a6adb106225
KVM: page_track: fix access to NULL slot This happens when doing the reboot test from virt-tests: [ 131.833653] BUG: unable to handle kernel NULL pointer dereference at (null) [ 131.842461] IP: [<ffffffffa0950087>] kvm_page_track_is_active+0x17/0x60 [kvm] [ 131.850500] PGD 0 [ 131.852763] Oops: 0000 [#1] SMP [ 132.007188] task: ffff880075fbc500 ti: ffff880850a3c000 task.ti: ffff880850a3c000 [ 132.138891] Call Trace: [ 132.141639] [<ffffffffa092bd11>] page_fault_handle_page_track+0x31/0x40 [kvm] [ 132.149732] [<ffffffffa093380f>] paging64_page_fault+0xff/0x910 [kvm] [ 132.172159] [<ffffffffa092c734>] kvm_mmu_page_fault+0x64/0x110 [kvm] [ 132.179372] [<ffffffffa06743c2>] handle_exception+0x1b2/0x430 [kvm_intel] [ 132.187072] [<ffffffffa067a301>] vmx_handle_exit+0x1e1/0xc50 [kvm_intel] ... Cc: Xiao Guangrong <guangrong.xiao@linux.intel.com> Fixes: 3d0c27ad6ee465f174b09ee99fcaf189c57d567a Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>