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
xen-hypercalls.sh
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
out="$1"
shift
in="$@"
for i in $in; do
eval $CPP $LINUXINCLUDE -dD -imacros "$i" -x c /dev/null
done | \
awk '$1 == "#define" && $2 ~ /__HYPERVISOR_[a-z][a-z_0-9]*/ { v[$3] = $2 }
END { print "/* auto-generated by scripts/xen-hypercall.sh */"
for (i in v) if (!(v[i] in v))
print "HYPERCALL("substr(v[i], 14)")"}' | sort -u >$out
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