From: Brijesh Singh <brijesh.singh@amd.com>
To: kvm@vger.kernel.org
Cc: "Brijesh Singh" <brijesh.singh@amd.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
"Borislav Petkov" <bp@suse.de>,
"Tom Lendacky" <thomas.lendacky@amd.com>,
linux-kernel@vger.kernel.org, "Joerg Roedel" <joro@8bytes.org>
Subject: [PATCH 2/4] KVM: SVM: Fix sparse: incorrect type in argument 1 (different base types)
Date: Mon, 15 Jan 2018 07:32:03 -0600 [thread overview]
Message-ID: <20180115133205.93859-3-brijesh.singh@amd.com> (raw)
In-Reply-To: <20180115133205.93859-1-brijesh.singh@amd.com>
Fix sparse: incorrect type in argument 1 (different base types). Typecast
the userspace address argument.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: linux-kernel@vger.kernel.org
Cc: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
---
arch/x86/kvm/svm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 99476c706c16..8ce5bb7b04d1 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -6135,7 +6135,9 @@ static int sev_launch_measure(struct kvm *kvm, struct kvm_sev_cmd *argp)
goto e_free;
}
- if (!access_ok(VERIFY_WRITE, params.uaddr, params.len)) {
+ if (!access_ok(VERIFY_WRITE,
+ (void __user *)(uintptr_t)params.uaddr,
+ params.len)) {
ret = -EFAULT;
goto e_free;
}
--
2.9.5
next prev parent reply other threads:[~2018-01-15 13:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-15 13:32 [PATCH 0/4] KVM: SVM: kbuild test robot warning fixes Brijesh Singh
2018-01-15 13:32 ` [PATCH 1/4] crypto: ccp: Fix sparse, use plain integer as NULL pointer Brijesh Singh
2018-01-15 13:32 ` Brijesh Singh [this message]
2018-01-15 13:32 ` [PATCH 3/4] include: psp-sev: Capitalize invalid length enum Brijesh Singh
2018-01-15 13:32 ` [PATCH 4/4] KVM: SVM: Fix SEV LAUNCH_SECRET command Brijesh Singh
2018-02-24 0:16 ` [PATCH 0/4] KVM: SVM: kbuild test robot warning fixes Paolo Bonzini
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