Use the correct add instruction when popping CS.

2021-02-15 20:02:35 +01:00
parent 2a9b7a0fc8
commit c19581282d
1 changed files with 1 additions and 1 deletions
--- a/src/arch/x86_64/interrupt/syscall.rs
+++ b/src/arch/x86_64/interrupt/syscall.rs
@@ -112,7 +112,7 @@ function!(syscall_instruction => {

        // Otherwise, continue with the fast sysretq.

-        sub rsp, 8              // Pop fake userspace CS
+        add rsp, 8              // Pop fake userspace CS
        pop r11                 // Pop rflags
        pop QWORD PTR gs:[0x70] // Pop userspace stack pointer
        mov rsp, gs:[0x70]      // Restore userspace stack pointer