From 78004e9a87f240df03e2f73120d291763c32e0a7 Mon Sep 17 00:00:00 2001 From: Ali Ahmet Memis Date: Fri, 21 Aug 2026 01:45:27 +0000 Subject: openrisc: fix arbitrary kernel memory access via or1k_atomic syscall sys_or1k_atomic() (syscall 244 in the "or1k" ABI) takes two user pointers, v1 and v2, and swaps the words they point to in hand-written assembly. l.lwz r29,0(r4) l.lwz r27,0(r5) l.sw 0(r4),r27 l.sw 0(r5),r29 The pointers are not checked with access_ok(). The four memory accesses also have no exception table entries. A caller passes a kernel address as either pointer, and the syscall reads from and writes to it directly. This gives an unprivileged process a kernel read/write primitive. It overwrites kernel data such as the sys_call_table, gaining code execution in kernel context. Check both pointers before entering the critical section. Add fixups for the four memory accesses so faults on valid but unmapped user addresses return -EFAULT. [shorne@gmail.com: fix comment style] Fixes: 9d02a4283e9c ("OpenRISC: Boot code") Cc: stable@vger.kernel.org Signed-off-by: Ali Ahmet Memis Signed-off-by: Stafford Horne --- drivers/net/usb/Makefile | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 drivers/net/usb/Makefile (limited to 'drivers/net/usb/Makefile') diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile new file mode 100644 index 000000000..4964f7b32 --- /dev/null +++ b/drivers/net/usb/Makefile @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for USB Network drivers +# + +obj-$(CONFIG_USB_CATC) += catc.o +obj-$(CONFIG_USB_KAWETH) += kaweth.o +obj-$(CONFIG_USB_PEGASUS) += pegasus.o +obj-$(CONFIG_USB_RTL8150) += rtl8150.o +obj-$(CONFIG_USB_RTL8152) += r8152.o +obj-$(CONFIG_USB_HSO) += hso.o +obj-$(CONFIG_USB_LAN78XX) += lan78xx.o +obj-$(CONFIG_USB_NET_AX8817X) += asix.o +asix-y := asix_devices.o asix_common.o ax88172a.o +obj-$(CONFIG_USB_NET_AX88179_178A) += ax88179_178a.o +obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o +obj-$(CONFIG_USB_NET_CDC_EEM) += cdc_eem.o +obj-$(CONFIG_USB_NET_DM9601) += dm9601.o +obj-$(CONFIG_USB_NET_SR9700) += sr9700.o +obj-$(CONFIG_USB_NET_SR9800) += sr9800.o +obj-$(CONFIG_USB_NET_SMSC75XX) += smsc75xx.o +obj-$(CONFIG_USB_NET_SMSC95XX) += smsc95xx.o +obj-$(CONFIG_USB_NET_GL620A) += gl620a.o +obj-$(CONFIG_USB_NET_NET1080) += net1080.o +obj-$(CONFIG_USB_NET_PLUSB) += plusb.o +obj-$(CONFIG_USB_NET_RNDIS_HOST) += rndis_host.o +obj-$(CONFIG_USB_NET_CDC_SUBSET_ENABLE) += cdc_subset.o +obj-$(CONFIG_USB_NET_ZAURUS) += zaurus.o +obj-$(CONFIG_USB_NET_MCS7830) += mcs7830.o +obj-$(CONFIG_USB_USBNET) += usbnet.o +obj-$(CONFIG_USB_NET_INT51X1) += int51x1.o +obj-$(CONFIG_USB_CDC_PHONET) += cdc-phonet.o +obj-$(CONFIG_USB_NET_KALMIA) += kalmia.o +obj-$(CONFIG_USB_IPHETH) += ipheth.o +obj-$(CONFIG_USB_SIERRA_NET) += sierra_net.o +obj-$(CONFIG_USB_NET_CX82310_ETH) += cx82310_eth.o +obj-$(CONFIG_USB_NET_CDC_NCM) += cdc_ncm.o +obj-$(CONFIG_USB_NET_HUAWEI_CDC_NCM) += huawei_cdc_ncm.o +obj-$(CONFIG_USB_VL600) += lg-vl600.o +obj-$(CONFIG_USB_NET_QMI_WWAN) += qmi_wwan.o +obj-$(CONFIG_USB_NET_CDC_MBIM) += cdc_mbim.o +obj-$(CONFIG_USB_NET_CH9200) += ch9200.o +obj-$(CONFIG_USB_NET_AQC111) += aqc111.o +obj-$(CONFIG_USB_RTL8153_ECM) += r8153_ecm.o -- cgit v1.3.1