diff options
Diffstat (limited to 'scripts/leaking_addresses.pl')
| -rwxr-xr-x | scripts/leaking_addresses.pl | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/scripts/leaking_addresses.pl b/scripts/leaking_addresses.pl index 31cf54ad379f..398e534f0e16 100755 --- a/scripts/leaking_addresses.pl +++ b/scripts/leaking_addresses.pl @@ -19,6 +19,7 @@ use Cwd 'abs_path'; use Term::ANSIColor qw(:constants); use Getopt::Long qw(:config no_auto_abbrev); use Config; +use bigint qw/hex/; my $P = $0; my $V = '0.01'; @@ -195,17 +196,24 @@ sub is_false_positive return 1; } - if (is_x86_64()) { - # vsyscall memory region, we should probably check against a range here. - if ($match =~ '\bf{10}600000\b' or - $match =~ '\bf{10}601000\b') { - return 1; - } + if (is_x86_64() and is_in_vsyscall_memory_region($match)) { + return 1; } return 0; } +sub is_in_vsyscall_memory_region +{ + my ($match) = @_; + + my $hex = hex($match); + my $region_min = hex("0xffffffffff600000"); + my $region_max = hex("0xffffffffff601000"); + + return ($hex >= $region_min and $hex <= $region_max); +} + # True if argument potentially contains a kernel address. sub may_leak_address { |