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
Raw File
profile2linkerlist.pl
#!/usr/bin/env perl
# SPDX-License-Identifier: GPL-2.0

#
# Takes a (sorted) output of readprofile and turns it into a list suitable for
# linker scripts
#
# usage:
#	 readprofile | sort -rn | perl profile2linkerlist.pl > functionlist
#
use strict;

while (<>) {
  my $line = $_;

  $_ =~ /\W*[0-9]+\W*([a-zA-Z\_0-9]+)\W*[0-9]+/;

  print "*(.text.$1)\n"
      unless ($line =~ /unknown/) || ($line =~ /total/);
}
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