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From: <gregkh@linuxfoundation.org>
To: Sukrit.Bhatnagar@sony.com,seanjc@google.com,xiaoyao.li@intel.com
Cc: <stable@vger.kernel.org>
Subject: FAILED: patch "[PATCH] KVM: VMX: Fix check for valid GVA on an EPT violation" failed to apply to 6.12-stable tree
Date: Thu, 20 Nov 2025 16:51:16 +0100	[thread overview]
Message-ID: <2025112016-chatter-plutonium-baf8@gregkh> (raw)


The patch below does not apply to the 6.12-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.12.y
git checkout FETCH_HEAD
git cherry-pick -x d0164c161923ac303bd843e04ebe95cfd03c6e19
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2025112016-chatter-plutonium-baf8@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From d0164c161923ac303bd843e04ebe95cfd03c6e19 Mon Sep 17 00:00:00 2001
From: Sukrit Bhatnagar <Sukrit.Bhatnagar@sony.com>
Date: Thu, 6 Nov 2025 14:28:51 +0900
Subject: [PATCH] KVM: VMX: Fix check for valid GVA on an EPT violation

On an EPT violation, bit 7 of the exit qualification is set if the
guest linear-address is valid. The derived page fault error code
should not be checked for this bit.

Fixes: f3009482512e ("KVM: VMX: Set PFERR_GUEST_{FINAL,PAGE}_MASK if and only if the GVA is valid")
Cc: stable@vger.kernel.org
Signed-off-by: Sukrit Bhatnagar <Sukrit.Bhatnagar@sony.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Link: https://patch.msgid.link/20251106052853.3071088-1-Sukrit.Bhatnagar@sony.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

diff --git a/arch/x86/kvm/vmx/common.h b/arch/x86/kvm/vmx/common.h
index bc5ece76533a..412d0829d7a2 100644
--- a/arch/x86/kvm/vmx/common.h
+++ b/arch/x86/kvm/vmx/common.h
@@ -98,7 +98,7 @@ static inline int __vmx_handle_ept_violation(struct kvm_vcpu *vcpu, gpa_t gpa,
 	error_code |= (exit_qualification & EPT_VIOLATION_PROT_MASK)
 		      ? PFERR_PRESENT_MASK : 0;
 
-	if (error_code & EPT_VIOLATION_GVA_IS_VALID)
+	if (exit_qualification & EPT_VIOLATION_GVA_IS_VALID)
 		error_code |= (exit_qualification & EPT_VIOLATION_GVA_TRANSLATED) ?
 			      PFERR_GUEST_FINAL_MASK : PFERR_GUEST_PAGE_MASK;
 


             reply	other threads:[~2025-11-20 15:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-20 15:51 gregkh [this message]
2025-11-20 18:19 ` [PATCH 6.12.y 1/2] KVM: VMX: Split out guts of EPT violation to common/exposed function Sasha Levin
2025-11-20 18:19   ` [PATCH 6.12.y 2/2] KVM: VMX: Fix check for valid GVA on an EPT violation Sasha Levin
2025-11-21  5:53 ` [PATCH 6.12.y] " Sukrit Bhatnagar

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