Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/1.1/patches/2229746/?format=api
{ "id": 2229746, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2229746/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260428164545.2782523-2-rkir@google.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api", "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": "" }, "msgid": "<20260428164545.2782523-2-rkir@google.com>", "date": "2026-04-28T16:45:44", "name": "[v2,1/2] qom: improve use-after-free debugging", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "c3611ad561aded15fac270a07a0b71a3d05c9a79", "submitter": { "id": 78520, "url": "http://patchwork.ozlabs.org/api/1.1/people/78520/?format=api", "name": "Roman Kiryanov", "email": "rkir@google.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260428164545.2782523-2-rkir@google.com/mbox/", "series": [ { "id": 501905, "url": "http://patchwork.ozlabs.org/api/1.1/series/501905/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=501905", "date": "2026-04-28T16:45:44", "name": "improve qom debugging and fix a dangling MemoryRegion in rutabaga", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/501905/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2229746/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2229746/checks/", "tags": {}, "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 (2048-bit key;\n unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256\n header.s=20251104 header.b=PsZHb7gQ;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g4mnW5w0bz1yHv\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 29 Apr 2026 02:57:18 +1000 (AEST)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1wHlk3-0007Qo-5F; Tue, 28 Apr 2026 12:56:59 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from\n <3QuTwaQQKCiUSLJSHPPHMF.DPNRFNV-EFWFMOPOHOV.PSH@flex--rkir.bounces.google.com>)\n id 1wHlk1-0007Q1-62\n for qemu-devel@nongnu.org; Tue, 28 Apr 2026 12:56:57 -0400", "from mail-qt1-x849.google.com ([2607:f8b0:4864:20::849])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from\n <3QuTwaQQKCiUSLJSHPPHMF.DPNRFNV-EFWFMOPOHOV.PSH@flex--rkir.bounces.google.com>)\n id 1wHljz-0005qi-Sf\n for qemu-devel@nongnu.org; Tue, 28 Apr 2026 12:56:56 -0400", "by mail-qt1-x849.google.com with SMTP id\n d75a77b69052e-50d84b5f73bso109175961cf.0\n for <qemu-devel@nongnu.org>; Tue, 28 Apr 2026 09:56:55 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=google.com; s=20251104; t=1777395414; x=1778000214; darn=nongnu.org;\n h=cc:to:from:subject:message-id:references:mime-version:in-reply-to\n :date:from:to:cc:subject:date:message-id:reply-to;\n bh=TL1L51oQCGIW4br1aTdVOo6QOP2GeP5tlFhllIDhyrE=;\n b=PsZHb7gQBHD8+JG9PkgblEAz+KRI+gFmxiOUW2Rvj1R0w2XSY4DKPZTGZ6bslJRVTO\n 8ClrCbv2O7CjOq9/BiR7vtv8iD26KnzBKXOv8fwWCk+MYMslh4TRUFkYPfBGGre871vO\n /aBJHg4pclpYhsH/fnA1aKaGo4kvpOusnuZgKvw7ok29WPnUlPiAzjWSGGbiNAm4iGJJ\n E8n3Rx2v064wwT89JCGdwjroA+LqaISo365BhHSQDqcfT7X7c9R8AH/7BClV5oU/43Yq\n zsEP9OCq/zkD9hZCjF/3lJ5G83fBswQh3oZyx2vKwigsx54guYCPa1HGNJRBfJXCMg/D\n 9E2A==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1777395414; x=1778000214;\n h=cc:to:from:subject:message-id:references:mime-version:in-reply-to\n :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to;\n bh=TL1L51oQCGIW4br1aTdVOo6QOP2GeP5tlFhllIDhyrE=;\n b=DV2z+9QEBQI5nCnnyh0Db0Kel/OzMWMMwFvAGfUYITQsAgcbrVfLHF8ZlgdOv+dIdR\n 7+4lWghUBPTGT0kU1PtWCMDxr6V5+kYlE9omHO9bRFlhJEPxDL1qybuMIxUsJKXUNoqC\n iXA3Lfb29+4QZ/TrAyWd5nKA9ZcWVB/gk8ZglqGBSHDOxO1fTaxD3PSV5Pe67ta+SOWd\n QvCxSfVpHpXENO6Ttv3QBhDMFHjos5nyYpu+C5J/w9KT58RbE/s1nc/xPSaP8je+ahrW\n SQgNf8o6xT/H8kXA1u/S0uiewip56X2tjVAmRww44Q89bAtlxGVtiAnfhMYtpPveX4TZ\n 4Qnw==", "X-Gm-Message-State": "AOJu0YwQoPj+AxPxp8qDHgGz5QTMLEBWyuHC2/krQYYUwuZaDdOTfJPv\n WH4o1QSnd0PHfxOOZaIzQK/BrgceKKipgBeBmbMYjU8qudkwJaKCT6LA0dbWWbvJ/O0FKSj79w=\n =", "X-Received": "from pgar18.prod.google.com\n ([2002:a05:6a02:2e92:b0:c6d:c043:2cb4])\n (user=rkir job=prod-delivery.src-stubby-dispatcher) by\n 2002:a17:90b:1344:b0:35b:90e7:c44f\n with SMTP id 98e67ed59e1d1-36491f8775cmr4174357a91.7.1777394754032; Tue, 28\n Apr 2026 09:45:54 -0700 (PDT)", "Date": "Tue, 28 Apr 2026 16:45:44 +0000", "In-Reply-To": "<20260428164545.2782523-1-rkir@google.com>", "Mime-Version": "1.0", "References": "<20260427154441.1918536-1-rkir@google.com>\n <20260428164545.2782523-1-rkir@google.com>", "X-Mailer": "git-send-email 2.54.0.545.g6539524ca2-goog", "Message-ID": "<20260428164545.2782523-2-rkir@google.com>", "Subject": "[PATCH v2 1/2] qom: improve use-after-free debugging", "From": "Roman Kiryanov <rkir@google.com>", "To": "pbonzini@redhat.com, alex.bennee@linaro.org, marcandre.lureau@gmail.com", "Cc": "qemu-devel@nongnu.org, Roman Kiryanov <rkir@google.com>", "Content-Type": "text/plain; charset=\"UTF-8\"", "Received-SPF": "pass client-ip=2607:f8b0:4864:20::849;\n envelope-from=3QuTwaQQKCiUSLJSHPPHMF.DPNRFNV-EFWFMOPOHOV.PSH@flex--rkir.bounces.google.com;\n helo=mail-qt1-x849.google.com", "X-Spam_score_int": "-95", "X-Spam_score": "-9.6", "X-Spam_bar": "---------", "X-Spam_report": "(-9.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001,\n USER_IN_DEF_DKIM_WL=-7.5 autolearn=ham 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 patch invalidates dead objects so their usage will\nlead to more predictable results (crashes or asserts).\n\nSigned-off-by: Roman Kiryanov <rkir@google.com>\n---\nChanges in v2:\n- Updated clearing of obj->properties using g_clear_pointer.\n- Moved clearing of obj->class into object_deinit.\n- obj->class is checked to be NULL before obj->free(obj).\n\n qom/object.c | 6 +++++-\n 1 file changed, 5 insertions(+), 1 deletion(-)", "diff": "diff --git a/qom/object.c b/qom/object.c\nindex f981e27044..b8ffb00976 100644\n--- a/qom/object.c\n+++ b/qom/object.c\n@@ -612,7 +612,7 @@ static void object_property_del_all(Object *obj)\n }\n } while (released);\n \n- g_hash_table_unref(obj->properties);\n+ g_clear_pointer(&obj->properties, g_hash_table_unref);\n }\n \n static void object_property_del_child(Object *obj, Object *child)\n@@ -658,6 +658,9 @@ static void object_deinit(Object *obj, TypeImpl *type)\n if (type_has_parent(type)) {\n object_deinit(obj, type_get_parent(type));\n }\n+\n+ g_assert(obj->properties == NULL);\n+ obj->class = NULL;\n }\n \n static void object_finalize(void *data)\n@@ -670,6 +673,7 @@ static void object_finalize(void *data)\n \n g_assert(obj->ref == 0);\n g_assert(obj->parent == NULL);\n+ g_assert(obj->class == NULL);\n if (obj->free) {\n obj->free(obj);\n }\n", "prefixes": [ "v2", "1/2" ] }