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OpenCloudOS-Kernel
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checkpatch: match more world writable permissions 

Currently checkpatch will fuss if one uses world writable settings in
debugfs files and DEVICE_ATTR uses by testing S_IWUGO but not testing
S_IWOTH, S_IRWXUGO or S_IALLUGO.

Extend the check to catch all cases exporting world writable permissions
including octal values.

[akpm@linux-foundation.org: remove stray $]
Signed-off-by: Joe Perches <joe@perches.com>
Original-patch-by: Nicholas Mc Guire <hofrat@osadl.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2015-04-16 12:44:16 -07:00 committed by Linus Torvalds
parent ebfd7d6237
commit b392c64f59
1 changed files with 10 additions and 2 deletions
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12
scripts/checkpatch.pl
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@ -443,6 +443,14 @@ foreach my $entry (@mode_permission_funcs) {
$mode_perms_search .= $entry->[0];
}
our $mode_perms_world_writable = qr{
S_IWUGO |
S_IWOTH |
S_IRWXUGO |
S_IALLUGO |
0[0-7][0-7][2367]
}x;
our $allowed_asm_includes = qr{(?x:
irq|
memory|
@ -5356,8 +5364,8 @@ sub process {
}
}
if ($line =~ /debugfs_create_file.*S_IWUGO/ ||
$line =~ /DEVICE_ATTR.*S_IWUGO/ ) {
if ($line =~ /debugfs_create_\w+.*\b$mode_perms_world_writable\b/ ||
$line =~ /DEVICE_ATTR.*\b$mode_perms_world_writable\b/) {
WARN("EXPORTED_WORLD_WRITABLE",
"Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
}