{"id":1409792,"url":"http://patchwork.ozlabs.org/api/patches/1409792/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20201202152611.677753-2-stefanha@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":"<20201202152611.677753-2-stefanha@redhat.com>","list_archive_url":null,"date":"2020-12-02T15:26:08","name":"[v2,1/4] contrib/vhost-user-blk: avoid g_return_val_if() input validation","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"2883dd925d6c74a28e46c8fb535dd5977ff78cfb","submitter":{"id":17227,"url":"http://patchwork.ozlabs.org/api/people/17227/?format=json","name":"Stefan Hajnoczi","email":"stefanha@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20201202152611.677753-2-stefanha@redhat.com/mbox/","series":[{"id":218104,"url":"http://patchwork.ozlabs.org/api/series/218104/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=218104","date":"2020-12-02T15:26:07","name":"vhost-user: avoid g_return_val_if() in get/set_config()","version":2,"mbox":"http://patchwork.ozlabs.org/series/218104/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/1409792/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/1409792/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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t=1606922809;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=4f4fF+jza61JyObyzKSwizPk2hRlmVl4AjLmXsZW5sQ=;\n b=LJrARZMJr7mMAA+gGVjEfvonrQQyN2BK4fzfyRh0KrjtxGHjtpP7Vr6eBx70qF24Xk8+il\n 2i/msA3U1Bx+wxQADUateuX+QSUU32RBQRM5rhSCEcakqoH/zhK25mclqxHZlIf8+DIZ6+\n cO2LB++QtGcSSkxwz+kRtKFsk709kq0=","X-MC-Unique":"C0d1ZxSkNa--IG19JFHvyA-1","From":"Stefan Hajnoczi ","To":"qemu-devel@nongnu.org","Subject":"[PATCH v2 1/4] contrib/vhost-user-blk: avoid g_return_val_if() input\n validation","Date":"Wed, 2 Dec 2020 15:26:08 +0000","Message-Id":"<20201202152611.677753-2-stefanha@redhat.com>","In-Reply-To":"<20201202152611.677753-1-stefanha@redhat.com>","References":"<20201202152611.677753-1-stefanha@redhat.com>","MIME-Version":"1.0","X-Scanned-By":"MIMEDefang 2.84 on 10.5.11.23","X-Mimecast-Spam-Score":"0","X-Mimecast-Originator":"redhat.com","Content-Transfer-Encoding":"base64","Content-Type":"text/plain; charset=\"US-ASCII\"","Received-SPF":"pass client-ip=216.205.24.124;\n envelope-from=stefanha@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com","X-Spam_score_int":"-18","X-Spam_score":"-1.9","X-Spam_bar":"-","X-Spam_report":"(-1.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.495,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n MIME_BASE64_TEXT=1.741, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001,\n RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=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":"2.1.23","Precedence":"list","List-Id":"","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Cc":"Kevin Wolf , qemu-block@nongnu.org,\n \"Michael S. Tsirkin\" , Markus Armbruster ,\n Coiby Xu , Raphael Norwitz ,\n\t=?utf-8?q?Marc-Andr=C3=A9_Lureau?= ,\n Gerd Hoffmann , Stefan Hajnoczi ,\n\t=?utf-8?q?Marc-Andr=C3=A9_Lureau?= ,\n Max Reitz , Stefano Garzarella ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n "},"content":"Do not validate input with g_return_val_if(). This API is intended for\nchecking programming errors and is compiled out with -DG_DISABLE_CHECKS.\n\nUse an explicit if statement for input validation so it cannot\naccidentally be compiled out.\n\nSuggested-by: Markus Armbruster \nSigned-off-by: Stefan Hajnoczi \n---\n contrib/vhost-user-blk/vhost-user-blk.c | 6 +++++-\n 1 file changed, 5 insertions(+), 1 deletion(-)","diff":"diff --git a/contrib/vhost-user-blk/vhost-user-blk.c b/contrib/vhost-user-blk/vhost-user-blk.c\nindex dc981bf945..60e3c9ed37 100644\n--- a/contrib/vhost-user-blk/vhost-user-blk.c\n+++ b/contrib/vhost-user-blk/vhost-user-blk.c\n@@ -404,7 +404,11 @@ vub_get_config(VuDev *vu_dev, uint8_t *config, uint32_t len)\n VugDev *gdev;\n VubDev *vdev_blk;\n \n- g_return_val_if_fail(len <= sizeof(struct virtio_blk_config), -1);\n+ if (len > sizeof(struct virtio_blk_config)) {\n+ fprintf(stderr, \"Invalid get_config len %u, expected <= %zu\\n\",\n+ len, sizeof(struct virtio_blk_config));\n+ return -1;\n+ }\n \n gdev = container_of(vu_dev, VugDev, parent);\n vdev_blk = container_of(gdev, VubDev, parent);\n","prefixes":["v2","1/4"]}