Re: KASAN: use-after-free Read in rds_tcp_tune

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On Wed, 2018-02-14 at 16:55 +0100, Dmitry Vyukov wrote:
> On Wed, Feb 14, 2018 at 4:35 PM, Sowmini Varadhan <sowmini.varadhan@xxxxxxxxxx> wrote:
> > btw, checkpatch.pl complains about the syzbot*@syzkaller.appspotmail.com
> > addresses as "Unrecognized email address", we should fix that
> > error from checkpatch at some point.
> 
> Interesting. Looking at checkpatch.pl I think it wants all addresses
> to be in <>, i.e.
> Reported-by: <syzbot+bbd8e9a06452cc48059b@xxxxxxxxxxxxxxxxxxxxxxxxx>
> There probably was some reason to enforce this, so I think I will
> change the syzbot email template to include <>.
> Thanks!

Not really.

It's the somewhat unusual + in the address
that perl needs quoted before a substitution.

I believe this fixes it in checkpatch.
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 3d4040322ae1..2b8397da39d3 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1075,7 +1075,7 @@ sub parse_email {
 	} elsif ($formatted_email =~ /(\S+\@\S+)(.*)$/) {
 		$address = $1;
 		$comment = $2 if defined $2;
-		$formatted_email =~ s/$address.*$//;
+		$formatted_email =~ s/\Q$address\E.*$//;
 		$name = $formatted_email;
 		$name = trim($name);
 		$name =~ s/^\"|\"$//g;

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