{"id":2216005,"url":"http://patchwork.ozlabs.org/api/patches/2216005/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260325164453.72127-3-pbonzini@redhat.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260325164453.72127-3-pbonzini@redhat.com>","list_archive_url":null,"date":"2026-03-25T16:44:36","name":"[PULL,02/19] tdx: fix use-after-free in tdx_fetch_cpuid","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"e50a6d4a6176868edb105722bf3e401d0fa35953","submitter":{"id":2701,"url":"http://patchwork.ozlabs.org/api/people/2701/?format=json","name":"Paolo Bonzini","email":"pbonzini@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260325164453.72127-3-pbonzini@redhat.com/mbox/","series":[{"id":497473,"url":"http://patchwork.ozlabs.org/api/series/497473/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=497473","date":"2026-03-25T16:44:34","name":"[PULL,01/19] tests/functional: preserve PYTHONPATH entries","version":1,"mbox":"http://patchwork.ozlabs.org/series/497473/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2216005/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2216005/checks/","tags":{},"related":[],"headers":{"Return-Path":"<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com 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envelope-from=pbonzini@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com","X-Spam_score_int":"-20","X-Spam_score":"-2.1","X-Spam_bar":"--","X-Spam_report":"(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-0.001,\n SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no","X-Spam_action":"no action","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"qemu development <qemu-devel.nongnu.org>","List-Unsubscribe":"<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>","List-Archive":"<https://lists.nongnu.org/archive/html/qemu-devel>","List-Post":"<mailto:qemu-devel@nongnu.org>","List-Help":"<mailto:qemu-devel-request@nongnu.org?subject=help>","List-Subscribe":"<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"This is mostly harmless right now because the \"if\" is never\nhit, but the code as written makes no sense.\n\nReported-by: Stefan Weil <sw@weilnetz.de>\nCc: qemu-stable@nongnu.org\nSigned-off-by: Paolo Bonzini <pbonzini@redhat.com>\n---\n target/i386/kvm/tdx.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)","diff":"diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c\nindex 4cae99c281a..4714c9d514e 100644\n--- a/target/i386/kvm/tdx.c\n+++ b/target/i386/kvm/tdx.c\n@@ -848,7 +848,7 @@ static struct kvm_cpuid2 *tdx_fetch_cpuid(CPUState *cpu, int *ret)\n         r = tdx_vcpu_ioctl(cpu, KVM_TDX_GET_CPUID, 0, fetch_cpuid, &local_err);\n         if (r == -E2BIG) {\n             g_free(fetch_cpuid);\n-            size = fetch_cpuid->nent;\n+            size *= 2;\n         }\n     } while (r == -E2BIG);\n \n","prefixes":["PULL","02/19"]}