From 357e3b8e3a8769ba36eb8ec5e053e4825f1a9329 Mon Sep 17 00:00:00 2001 From: Florian Fuchs Date: Mon, 18 May 2026 13:45:21 +0200 Subject: [PATCH] mtd: maps: vmu-flash: fix NULL pointer dereference in initialization The mtd_info contains a struct device, which must be linked to its parent. Without this, the initialization of the MTD fails with a NULL pointer dereference. Fixes: 47a72688fae7 ("mtd: flash mapping support for Dreamcast VMU.") Cc: stable@vger.kernel.org Signed-off-by: Florian Fuchs Signed-off-by: Miquel Raynal --- drivers/mtd/maps/vmu-flash.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/maps/vmu-flash.c b/drivers/mtd/maps/vmu-flash.c index b76d0609d1b7..10244e6731d0 100644 --- a/drivers/mtd/maps/vmu-flash.c +++ b/drivers/mtd/maps/vmu-flash.c @@ -547,6 +547,7 @@ static void vmu_queryblocks(struct mapleq *mq) mpart->partition = card->partition; mtd_cur->priv = mpart; mtd_cur->owner = THIS_MODULE; + mtd_cur->dev.parent = &mdev->dev; pcache = kzalloc_obj(struct vmu_cache); if (!pcache)