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iret: Implement eip limit check (fix ubuntu 10 #474)

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Fabian 2021-11-08 19:51:14 -05:00
parent 9cffa38ca0
commit 96735eba68
1 changed files with 9 additions and 1 deletions
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10
src/rust/cpu/cpu.rs
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@ -551,7 +551,15 @@ pub unsafe fn iret(is_16: bool) {
},
};
dbg_assert!(new_eip as u32 <= cs_descriptor.effective_limit());
if new_eip as u32 > cs_descriptor.effective_limit() {
dbg_log!(
"#gp iret: new_eip > cs_descriptor.effective_limit, new_eip={:x} cs_descriptor.effective_limit={:x}",
new_eip as u32,
cs_descriptor.effective_limit()
);
trigger_gp(new_cs & !3);
return;
}
if !cs_descriptor.is_present() {
panic!("not present");