{"id":2228787,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2228787/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-mtd/patch/20260427114750.2480900-4-fuchsfl@gmail.com/","project":{"id":3,"url":"http://patchwork.ozlabs.org/api/1.1/projects/3/?format=json","name":"Linux MTD development","link_name":"linux-mtd","list_id":"linux-mtd.lists.infradead.org","list_email":"linux-mtd@lists.infradead.org","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<20260427114750.2480900-4-fuchsfl@gmail.com>","date":"2026-04-27T11:47:50","name":"[v2,3/3] mtd: maps: vmu-flash: Fix NULL pointer dereference in initialization","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"3f14ed73528bd8d74c98c0e8bc6413af8d0db27e","submitter":{"id":92066,"url":"http://patchwork.ozlabs.org/api/1.1/people/92066/?format=json","name":"Florian Fuchs","email":"fuchsfl@gmail.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-mtd/patch/20260427114750.2480900-4-fuchsfl@gmail.com/mbox/","series":[{"id":501632,"url":"http://patchwork.ozlabs.org/api/1.1/series/501632/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-mtd/list/?series=501632","date":"2026-04-27T11:47:47","name":"mtd: maps: vmu-flash: Fix build and runtime errors","version":2,"mbox":"http://patchwork.ozlabs.org/series/501632/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2228787/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2228787/checks/","tags":{},"headers":{"Return-Path":"\n ","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 secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=C48RT0xw;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=MBz0Tv3a;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; 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The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: The mtd_info contains a struct device, which must be linked\n to its parent. Without this,\n the initialization of the MTD fails with a NULL\n pointer dereference. Signed-off-by: Florian Fuchs --- v1->v2: no\n functional\n change\n Content analysis details: (-2.1 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no\n trust\n [2a00:1450:4864:20:0:0:0:435 listed in]\n [list.dnswl.org]\n -0.0 SPF_PASS SPF: sender matches SPF record\n 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record\n -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from\n envelope-from domain\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's\n domain\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily valid\n -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n [score: 0.0000]\n 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail\n provider\n [fuchsfl(at)gmail.com]","X-BeenThere":"linux-mtd@lists.infradead.org","X-Mailman-Version":"2.1.34","Precedence":"list","List-Id":"Linux MTD discussion mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Sender":"\"linux-mtd\" ","Errors-To":"linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"},"content":"The mtd_info contains a struct device, which must be linked to its\nparent. Without this, the initialization of the MTD fails with a NULL\npointer dereference.\n\nSigned-off-by: Florian Fuchs \n---\nv1->v2: no functional change\n\nv1: https://lore.kernel.org/lkml/20251117224408.498449-4-fuchsfl@gmail.com/\n\n drivers/mtd/maps/vmu-flash.c | 1 +\n 1 file changed, 1 insertion(+)","diff":"diff --git a/drivers/mtd/maps/vmu-flash.c b/drivers/mtd/maps/vmu-flash.c\nindex b76d0609d1b7..10244e6731d0 100644\n--- a/drivers/mtd/maps/vmu-flash.c\n+++ b/drivers/mtd/maps/vmu-flash.c\n@@ -547,6 +547,7 @@ static void vmu_queryblocks(struct mapleq *mq)\n \tmpart->partition = card->partition;\n \tmtd_cur->priv = mpart;\n \tmtd_cur->owner = THIS_MODULE;\n+\tmtd_cur->dev.parent = &mdev->dev;\n \n \tpcache = kzalloc_obj(struct vmu_cache);\n \tif (!pcache)\n","prefixes":["v2","3/3"]}