From da350a1a88d9c571f85d02ddf266cbd234633e42 Mon Sep 17 00:00:00 2001 From: Yang Yingliang Date: Wed, 17 Jul 2024 03:02:53 +0000 Subject: [PATCH] usb: host: ohci-tmio: check return value after calling platform_get_resource() stable inclusion form stable-v5.10.82 commit 2474eb7fc3bfbce10f7b8ea431fcffe5dd5f5100 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9FNEW CVE: CVE-2021-47206 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=2474eb7fc3bfbce10f7b8ea431fcffe5dd5f5100 -------------------------------- [ Upstream commit 9eff2b2e59fda25051ab36cd1cb5014661df657b ] It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value. Acked-by: Alan Stern Signed-off-by: Yang Yingliang Link: https://lore.kernel.org/r/20211011134920.118477-1-yangyingliang@huawei.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin Signed-off-by: Chen Jun Signed-off-by: Zheng Zengkai Conflicts: drivers/usb/host/ohci-tmio.c [Some contexts different. No functional impact.] Signed-off-by: Zheng Zucheng --- drivers/usb/host/ohci-tmio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c index a631dbb369d7..06ee17dddc0e 100644 --- a/drivers/usb/host/ohci-tmio.c +++ b/drivers/usb/host/ohci-tmio.c @@ -196,7 +196,7 @@ static int ohci_hcd_tmio_drv_probe(struct platform_device *dev) if (usb_disabled()) return -ENODEV; - if (!cell) + if (!cell || !regs || !config || !sram) return -EINVAL; hcd = usb_create_hcd(&ohci_tmio_hc_driver, &dev->dev, dev_name(&dev->dev)); -- Gitee