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/serio/Makefile | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 drivers/input/serio/Makefile (limited to 'drivers/input/serio/Makefile') diff --git a/drivers/input/serio/Makefile b/drivers/input/serio/Makefile new file mode 100644 index 000000000..7f5137dc0 --- /dev/null +++ b/drivers/input/serio/Makefile @@ -0,0 +1,33 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the input core drivers. +# + +# Each configuration option enables a list of files. + +obj-$(CONFIG_SERIO) += serio.o +obj-$(CONFIG_SERIO_I8042) += i8042.o +obj-$(CONFIG_SERIO_PARKBD) += parkbd.o +obj-$(CONFIG_SERIO_SERPORT) += serport.o +obj-$(CONFIG_SERIO_RPCKBD) += rpckbd.o +obj-$(CONFIG_SERIO_SA1111) += sa1111ps2.o +obj-$(CONFIG_SERIO_AMBAKMI) += ambakmi.o +obj-$(CONFIG_SERIO_Q40KBD) += q40kbd.o +obj-$(CONFIG_SERIO_GSCPS2) += gscps2.o +obj-$(CONFIG_HP_SDC) += hp_sdc.o +obj-$(CONFIG_HIL_MLC) += hp_sdc_mlc.o hil_mlc.o +obj-$(CONFIG_SERIO_PCIPS2) += pcips2.o +obj-$(CONFIG_SERIO_PS2MULT) += ps2mult.o +obj-$(CONFIG_SERIO_MACEPS2) += maceps2.o +obj-$(CONFIG_SERIO_SGI_IOC3) += ioc3kbd.o +obj-$(CONFIG_SERIO_LIBPS2) += libps2.o +obj-$(CONFIG_SERIO_RAW) += serio_raw.o +obj-$(CONFIG_SERIO_AMS_DELTA) += ams_delta_serio.o +obj-$(CONFIG_SERIO_ALTERA_PS2) += altera_ps2.o +obj-$(CONFIG_SERIO_ARC_PS2) += arc_ps2.o +obj-$(CONFIG_SERIO_APBPS2) += apbps2.o +obj-$(CONFIG_SERIO_OLPC_APSP) += olpc_apsp.o +obj-$(CONFIG_HYPERV_KEYBOARD) += hyperv-keyboard.o +obj-$(CONFIG_SERIO_SUN4I_PS2) += sun4i-ps2.o +obj-$(CONFIG_SERIO_GPIO_PS2) += ps2-gpio.o +obj-$(CONFIG_USERIO) += userio.o -- cgit v1.3.1