[tip: sched/core] leaking_addresses: Always print a trailing newline

tip-bot2 for Kees Cook
2021-10-15T09:45:26Z

The following commit has been merged into the sched/core branch of tip:

Commit-ID: cf2a85efdade117e2169d6e26641016cbbf03ef0
Gitweb: https://git.kernel.org/tip/cf2a85efdade117e2169d6e26641016cbbf03ef0
Author: Kees Cook <keescook@chromium.org>
AuthorDate: Wed, 29 Sep 2021 15:02:18 -07:00
Committer: Peter Zijlstra <peterz@infradead.org>
CommitterDate: Fri, 15 Oct 2021 11:25:13 +02:00

leaking_addresses: Always print a trailing newline

For files that lack trailing newlines and match a leaking address (e.g.
wchan[1]), the leaking_addresses.pl report would run together with the
next line, making things look corrupted.

Unconditionally remove the newline on input, and write it back out on
output.

[1] https://lore.kernel.org/all/20210103142726.GC30643@xsang-OptiPlex-9020/

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211008111626.151570317@infradead.org
---
scripts/leaking_addresses.pl | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/leaking_addresses.pl b/scripts/leaking_addresses.pl
index b2d8b8a..8f636a2 100755
--- a/scripts/leaking_addresses.pl
+++ b/scripts/leaking_addresses.pl
@@ -455,8 +455,9 @@ sub parse_file

open my $fh, "<", $file or return;
while ( <$fh> ) {
+ chomp;
if (may_leak_address($_)) {
- print $file . ': ' . $_;
+ printf("$file: $_\n");
}
}
close $fh;