Revision d81916910f7498fe7a768697e0101d488f9fe665 authored by Yang Yingliang on 29 October 2022, 08:29:31 UTC, committed by Huacai Chen on 29 October 2022, 08:29:31 UTC
Currently the return value of 'sub_driver->init' is not checked. If sparse_keymap_setup() called in the init function fails, 'generic_ inputdev' is freed, then it will lead a UAF when using it in generic_ acpi_laptop_init(). Fix it by checking the return value and setting generic_inputdev to NULL after free, so as to avoid double free it. The error code in generic_subdriver_init() is always negative, so the return of generic_subdriver_init() can be simplified. Fixes: 6246ed09111f ("LoongArch: Add ACPI-based generic laptop driver") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
1 parent fbe605a
mkcompile_h
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
UTS_MACHINE=$1
CC_VERSION="$2"
LD=$3
if test -z "$KBUILD_BUILD_USER"; then
LINUX_COMPILE_BY=$(whoami | sed 's/\\/\\\\/')
else
LINUX_COMPILE_BY=$KBUILD_BUILD_USER
fi
if test -z "$KBUILD_BUILD_HOST"; then
LINUX_COMPILE_HOST=`uname -n`
else
LINUX_COMPILE_HOST=$KBUILD_BUILD_HOST
fi
LD_VERSION=$(LC_ALL=C $LD -v | head -n1 |
sed -e 's/(compatible with [^)]*)//' -e 's/[[:space:]]*$//')
cat <<EOF
#define UTS_MACHINE "${UTS_MACHINE}"
#define LINUX_COMPILE_BY "${LINUX_COMPILE_BY}"
#define LINUX_COMPILE_HOST "${LINUX_COMPILE_HOST}"
#define LINUX_COMPILER "${CC_VERSION}, ${LD_VERSION}"
EOF
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