iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

KVM: x86: em_ret_far overrides cpl

Browse Source 
commit d50eaa18039b ("KVM: x86: Perform limit checks when assigning EIP")
mistakenly used zero as cpl on em_ret_far. Use the actual one.

Fixes: d50eaa18039b8b848c2285478d0775335ad5e930
Cc: stable@vger.kernel.org
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Nadav Amit 2014-12-11 12:27:14 +01:00 committed by Paolo Bonzini
parent 78051e3b7e
commit ab646f54f4
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/kvm/emulate.c
View File

@ -2130,7 +2130,7 @@ static int em_ret_far(struct x86_emulate_ctxt *ctxt)
/* Outer-privilege level return is not implemented */
if (ctxt->mode >= X86EMUL_MODE_PROT16 && (cs & 3) > cpl)
return X86EMUL_UNHANDLEABLE;
rc = __load_segment_descriptor(ctxt, (u16)cs, VCPU_SREG_CS, 0, false,
rc = __load_segment_descriptor(ctxt, (u16)cs, VCPU_SREG_CS, cpl, false,
&new_desc);
if (rc != X86EMUL_CONTINUE)
return rc;