Static checker noticed that base3 could be used uninitialized if the segment was not present (useable). Random stack values probably would not pass VMCS entry checks.
Reported-by: Dan Carpenter <[email protected]> Fixes: 1aa366163b8b ("KVM: x86 emulator: consolidate segment accessors") Signed-off-by: Radim Krčmář <[email protected]> --- arch/x86/kvm/x86.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b54125b590e8..eed8272dd52e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5053,6 +5053,8 @@ static bool emulator_get_segment(struct x86_emulate_ctxt *ctxt, u16 *selector, if (var.unusable) { memset(desc, 0, sizeof(*desc)); + if (base3) + *base3 = 0; return false; } -- 2.13.0
