FAILED: patch "[PATCH] KVM: SVM: Clear current_vmcb during vCPU free for all" failed to apply to 5.10-stable tree

The patch below does not apply to the 5.10-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 <[email protected]>.

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-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x 1bee4838eb3a2c689f23c7170ea66ae87ea7d93a
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2025062012-hardly-earthlike-2158@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

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

From 1bee4838eb3a2c689f23c7170ea66ae87ea7d93a Mon Sep 17 00:00:00 2001
From: Yosry Ahmed <[email protected]>
Date: Tue, 29 Apr 2025 08:32:15 -0700
Subject: [PATCH] KVM: SVM: Clear current_vmcb during vCPU free for all
*possible* CPUs

When freeing a vCPU and thus its VMCB, clear current_vmcb for all possible CPUs, not just online CPUs, as it's theoretically possible a CPU could go offline and come back online in conjunction with KVM reusing the page for a new VMCB.

index 8eb482ca3359..e6802e33c54d 100644
@@ -1496,7 +1496,7 @@ static void svm_clear_current_vmcb(struct vmcb *vmcb)
 {
 	int i;
 
-	for_each_online_cpu(i)
+	for_each_possible_cpu(i)
 		cmpxchg(per_cpu_ptr(&svm_data.current_vmcb, i), vmcb, NULL);
 }