linux-kernel - next-20160314 - crash in i2c_dev_init/bus_register

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <5769.1458226791@turing-police.cc.vt.edu>
Date:	Thu, 17 Mar 2016 10:59:51 -0400
From:	Valdis Kletnieks <Valdis.Kletnieks@...edu>
To:	Wolfram Sang <wsa@...-dreams.de>
Cc:	linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org
Subject: next-20160314 - crash in i2c_dev_init/bus_register_notifier at boot

Seeing this consistent crash on next-20160314.  Sorry for shortened traceback,
hand-transcribed as the crash doesn't get logged to /sys/fs/pstore as
expected. next-20160307 works just fine.

BUG: unable to handle kernel NULL pointer dereference at 000000000260
IP: blocking_notifier_chain_register+0x37/0xd0
...
Call Trace:
bus_register_notifier+0x1c/0x20
i2c_dev_init+0x9c/0xf2
do_one_initcall_+0x99/0x210
? set_debug_rodata+0x12/0x12
kernel_init_freeable+0x1b3/0x240
kernel_init+0x3/0x100

'git blame' doesn't seem to find anything relevant and recent in
kernel/notifier.c or drivers/i2c/i2c-dev.c.  Does this ring any
bells, or is it time to bisect?

Content of type "application/pgp-signature" skipped