From e873c74132f0c5f1452816cd9bb26208f0bba1e1 Mon Sep 17 00:00:00 2001 From: Shivank Garg Date: Sat, 22 Aug 2026 19:22:05 +0000 Subject: dmaengine: fix use-after-free in dma_chan_put() and dma_release_channel() When dma_device_put() drops the last reference on chan->device->ref, dma_device_release() runs and may free the dma_device along with its channels. dma_chan_put() then still reads chan->device->owner via dma_chan_to_owner() for the trailing module_put(). KASAN catches it: slab-use-after-free in dma_chan_put+0x3e6/0x4c0 Read of size 8 by task insmod/6319 Freed by task 6319: kfree+0x225/0x470 dma_chan_put+0x395/0x4c0 dmaengine_put+0xf8/0x160 Cache the module owner in dma_chan_put() before the put so the trailing module_put() does not need chan->device. Fixes: 8ad342a86359 ("dmaengine: Add reference counting to dma_device struct") Suggested-by: Sashiko Link: https://sashiko.dev/#/patchset/20260518-dmaengine-kref-fix-v1-1-4d6125048fb7@amd.com Reviewed-by: Frank Li Reviewed-by: Logan Gunthorpe Signed-off-by: Shivank Garg Link: https://patch.msgid.link/20260822-dmaengine-kref-fix-v5-3-d4a4ee47d927@amd.com Signed-off-by: Vinod Koul --- drivers/input/mouse/Makefile | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 drivers/input/mouse/Makefile (limited to 'drivers/input/mouse/Makefile') diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile new file mode 100644 index 000000000..ed40f1416 --- /dev/null +++ b/drivers/input/mouse/Makefile @@ -0,0 +1,41 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the mouse drivers. +# + +# Each configuration option enables a list of files. + +obj-$(CONFIG_MOUSE_AMIGA) += amimouse.o +obj-$(CONFIG_MOUSE_APPLETOUCH) += appletouch.o +obj-$(CONFIG_MOUSE_ATARI) += atarimouse.o +obj-$(CONFIG_MOUSE_BCM5974) += bcm5974.o +obj-$(CONFIG_MOUSE_CYAPA) += cyapatp.o +obj-$(CONFIG_MOUSE_ELAN_I2C) += elan_i2c.o +obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o +obj-$(CONFIG_MOUSE_MAPLE) += maplemouse.o +obj-$(CONFIG_MOUSE_PS2) += psmouse.o +obj-$(CONFIG_MOUSE_RISCPC) += rpcmouse.o +obj-$(CONFIG_MOUSE_SERIAL) += sermouse.o +obj-$(CONFIG_MOUSE_SYNAPTICS_I2C) += synaptics_i2c.o +obj-$(CONFIG_MOUSE_SYNAPTICS_USB) += synaptics_usb.o +obj-$(CONFIG_MOUSE_VSXXXAA) += vsxxxaa.o + +cyapatp-objs := cyapa.o cyapa_gen3.o cyapa_gen5.o cyapa_gen6.o +psmouse-objs := psmouse-base.o synaptics.o focaltech.o + +psmouse-$(CONFIG_MOUSE_PS2_ALPS) += alps.o +psmouse-$(CONFIG_MOUSE_PS2_BYD) += byd.o +psmouse-$(CONFIG_MOUSE_PS2_ELANTECH) += elantech.o +psmouse-$(CONFIG_MOUSE_PS2_LOGIPS2PP) += logips2pp.o +psmouse-$(CONFIG_MOUSE_PS2_LIFEBOOK) += lifebook.o +psmouse-$(CONFIG_MOUSE_PS2_SENTELIC) += sentelic.o +psmouse-$(CONFIG_MOUSE_PS2_TRACKPOINT) += trackpoint.o +psmouse-$(CONFIG_MOUSE_PS2_TOUCHKIT) += touchkit_ps2.o +psmouse-$(CONFIG_MOUSE_PS2_CYPRESS) += cypress_ps2.o +psmouse-$(CONFIG_MOUSE_PS2_VMMOUSE) += vmmouse.o + +psmouse-$(CONFIG_MOUSE_PS2_SMBUS) += psmouse-smbus.o + +elan_i2c-objs := elan_i2c_core.o +elan_i2c-$(CONFIG_MOUSE_ELAN_I2C_I2C) += elan_i2c_i2c.o +elan_i2c-$(CONFIG_MOUSE_ELAN_I2C_SMBUS) += elan_i2c_smbus.o -- cgit v1.3.1