linux-kernel - [PATCH -rcu v2 0/2] kcsan: Improvements to reporting

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 10 Jan 2020 19:48:32 +0100
From:   Marco Elver <elver@...gle.com>
To:     elver@...gle.com
Cc:     paulmck@...nel.org, andreyknvl@...gle.com, glider@...gle.com,
        dvyukov@...gle.com, kasan-dev@...glegroups.com,
        linux-kernel@...r.kernel.org
Subject: [PATCH -rcu v2 0/2] kcsan: Improvements to reporting

Improvements to KCSAN data race reporting:
1. Show if access is marked (*_ONCE, atomic, etc.).
2. Rate limit reporting to avoid spamming console.

v2:
* Paul E. McKenney: commit message reword.
* Use jiffies instead of ktime -- we want to avoid calling into any
  further complex libraries, since KCSAN may also detect data races in
  them, and as a result potentially leading to observing corrupt state
  (e.g. here, observing corrupt ktime_t value).

Marco Elver (2):
  kcsan: Show full access type in report
  kcsan: Rate-limit reporting per data races

 kernel/kcsan/core.c   |  15 +++--
 kernel/kcsan/kcsan.h  |   2 +-
 kernel/kcsan/report.c | 151 +++++++++++++++++++++++++++++++++++-------
 lib/Kconfig.kcsan     |  10 +++
 4 files changed, 146 insertions(+), 32 deletions(-)

-- 
2.25.0.rc1.283.g88dfdc4193-goog