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selftests: kvm: Add 'malloc' failure check in vcpu_save_state

Message ID 20230322144528.704077-1-ivan.orlov0322@gmail.com
State Accepted
Commit 735b0e0f2d001b7ed9486db84453fb860e764a4d
Headers show
Series selftests: kvm: Add 'malloc' failure check in vcpu_save_state | expand

Commit Message

Ivan Orlov March 22, 2023, 2:45 p.m. UTC
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>
---
 tools/testing/selftests/kvm/lib/x86_64/processor.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Sean Christopherson March 24, 2023, 9:32 p.m. UTC | #1
On Wed, 22 Mar 2023 18:45:28 +0400, Ivan Orlov wrote:
> 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.
> 
> 

Applied to kvm-x86 selftests, thanks!

[1/1] selftests: kvm: Add 'malloc' failure check in vcpu_save_state
      https://github.com/kvm-x86/linux/commit/735b0e0f2d00

--
https://github.com/kvm-x86/linux/tree/next
https://github.com/kvm-x86/linux/tree/fixes
diff mbox series

Patch

diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
index c39a4353ba19..827647ff3d41 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);