From: "Tobin C. Harding" <me@tobin.cc>
To: Kernel Hardening <kernel-hardening@lists.openwall.com>
Cc: "Tobin C. Harding" <me@tobin.cc>, Tycho Andersen <tycho@tycho.ws>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 2/3] leaking_addresses: skip '/proc/1/syscall'
Date: Tue, 27 Feb 2018 15:45:10 +1100 [thread overview]
Message-ID: <1519706711-18580-3-git-send-email-me@tobin.cc> (raw)
In-Reply-To: <1519706711-18580-1-git-send-email-me@tobin.cc>
The pointers listed in /proc/1/syscall are user pointers, and negative
syscall args will show up like kernel addresses.
For example
/proc/31808/syscall: 0 0x3 0x55b107a38180 0x2000 0xffffffffffffffb0 \
0x55b107a302d0 0x55b107a38180 0x7fffa313b8e8 0x7ff098560d11
Skip parsing /proc/1/syscall
Reported-by: Tycho Andersen <tycho@tycho.ws>
Signed-off-by: Tobin C. Harding <me@tobin.cc>
---
scripts/leaking_addresses.pl | 1 +
1 file changed, 1 insertion(+)
diff --git a/scripts/leaking_addresses.pl b/scripts/leaking_addresses.pl
index fb40e2828f43..ac84a164a528 100755
--- a/scripts/leaking_addresses.pl
+++ b/scripts/leaking_addresses.pl
@@ -60,6 +60,7 @@ my $page_offset_32bit = 0; # Page offset for 32-bit kernel.
my @skip_abs = (
'/proc/kmsg',
'/proc/device-tree',
+ '/proc/1/syscall',
'/sys/firmware/devicetree',
'/sys/kernel/debug/tracing/trace_pipe',
'/sys/kernel/security/apparmor/revision');
--
2.7.4
next prev parent reply other threads:[~2018-02-27 4:45 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-27 4:45 [PATCH 0/3] leaking_addresses: limit scan to PID==1 Tobin C. Harding
2018-02-27 4:45 ` [PATCH 1/3] leaking_addresses: skip all /proc/PID except /proc/1 Tobin C. Harding
2018-02-27 5:09 ` Tycho Andersen
2018-02-27 6:29 ` Tobin C. Harding
2018-02-27 7:15 ` Alexander Kapshuk
2018-02-27 21:06 ` Tobin C. Harding
2018-03-01 21:06 ` Tobin C. Harding
2018-03-01 22:46 ` Tycho Andersen
2018-03-03 9:44 ` Alexander Kapshuk
2018-02-27 4:45 ` Tobin C. Harding [this message]
2018-02-27 4:45 ` [PATCH 3/3] leaking_addresses: remove version number Tobin C. Harding
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1519706711-18580-3-git-send-email-me@tobin.cc \
--to=me@tobin.cc \
--cc=kernel-hardening@lists.openwall.com \
--cc=linux-kernel@vger.kernel.org \
--cc=tycho@tycho.ws \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).