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From: Pavel Skripkin <>
	Pavel Skripkin <>
Subject: [PATCH next] kvm: debugfs: fix memory leak in kvm_create_vm_debugfs
Date: Thu,  1 Jul 2021 22:55:00 +0300	[thread overview]
Message-ID: <> (raw)

In commit bc9e9e672df9 ("KVM: debugfs: Reuse binary stats descriptors")
loop for filling debugfs_stat_data was copy-pasted 2 times, but
in the second loop pointers are saved over pointers allocated
in the first loop. It causes memory leak. Fix it.

Fixes: bc9e9e672df9 ("KVM: debugfs: Reuse binary stats descriptors")
Signed-off-by: Pavel Skripkin <>
 virt/kvm/kvm_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 7d95126cda9e..986959833d70 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -935,7 +935,7 @@ static int kvm_create_vm_debugfs(struct kvm *kvm, int fd)
 		stat_data->kvm = kvm;
 		stat_data->desc = pdesc;
 		stat_data->kind = KVM_STAT_VCPU;
-		kvm->debugfs_stat_data[i] = stat_data;
+		kvm->debugfs_stat_data[i + kvm_vm_stats_header.num_desc] = stat_data;
 		debugfs_create_file(pdesc->name, kvm_stats_debugfs_mode(pdesc),
 				    kvm->debugfs_dentry, stat_data,

             reply	other threads:[~2021-07-01 19:55 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-01 19:55 Pavel Skripkin [this message]
2021-07-01 21:24 ` Jing Zhang
2021-07-08 16:58   ` Paolo Bonzini

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