From: Ivan Orlov <ivan.orlov0322@gmail.com>
Date: Wed, 22 Mar 2023 18:45:28 +0400
Subject: [PATCH] KVM: selftests: Add 'malloc' failure check in vcpu_save_state
References: bsc#1012628
Patch-mainline: 6.3.4
Git-commit: 735b0e0f2d001b7ed9486db84453fb860e764a4d

[ Upstream commit 735b0e0f2d001b7ed9486db84453fb860e764a4d ]

There is a 'malloc' call in vcpu_save_state function, which can
be unsuccessful. This patch will add the malloc failure checking
to avoid possible null dereference and give more information
about test fail reasons.

Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230322144528.704077-1-ivan.orlov0322@gmail.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 tools/testing/selftests/kvm/lib/x86_64/processor.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
index c39a4353..827647ff 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
@@ -954,6 +954,7 @@ struct kvm_x86_state *vcpu_save_state(struct kvm_vcpu *vcpu)
 	vcpu_run_complete_io(vcpu);
 
 	state = malloc(sizeof(*state) + msr_list->nmsrs * sizeof(state->msrs.entries[0]));
+	TEST_ASSERT(state, "-ENOMEM when allocating kvm state");
 
 	vcpu_events_get(vcpu, &state->events);
 	vcpu_mp_state_get(vcpu, &state->mp_state);
-- 
2.35.3