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([102.46.166.30]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48556422338sm99206145e9.7.2026.03.16.08.16.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Mar 2026 08:16:17 -0700 (PDT) From: Osama Abdelkader To: Anup Patel , Atish Patra , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Vincent Chen , Andy Chiu , Greentime Hu , kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Osama Abdelkader , stable@vger.kernel.org Subject: [PATCH v2] riscv: kvm: fix vector context allocation leak Date: Mon, 16 Mar 2026 16:16:11 +0100 Message-ID: <20260316151612.13305-1-osama.abdelkader@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" When the second kzalloc (host_context.vector.datap) fails in kvm_riscv_vcpu_alloc_vector_context, the first allocation (guest_context.vector.datap) is leaked. Free it before returning. Fixes: 0f4b82579716 ("riscv: KVM: Add vector lazy save/restore support") Cc: stable@vger.kernel.org Signed-off-by: Osama Abdelkader Reviewed-by: Andy Chiu --- v2: - Add Fixes: tag - Add Cc: stable@vger.kernel.org --- arch/riscv/kvm/vcpu_vector.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/riscv/kvm/vcpu_vector.c b/arch/riscv/kvm/vcpu_vector.c index 05f3cc2d8e31..5b6ad82d47be 100644 --- a/arch/riscv/kvm/vcpu_vector.c +++ b/arch/riscv/kvm/vcpu_vector.c @@ -80,8 +80,11 @@ int kvm_riscv_vcpu_alloc_vector_context(struct kvm_vcpu = *vcpu) return -ENOMEM; =20 vcpu->arch.host_context.vector.datap =3D kzalloc(riscv_v_vsize, GFP_KERNE= L); - if (!vcpu->arch.host_context.vector.datap) + if (!vcpu->arch.host_context.vector.datap) { + kfree(vcpu->arch.guest_context.vector.datap); + vcpu->arch.guest_context.vector.datap =3D NULL; return -ENOMEM; + } =20 return 0; } --=20 2.43.0