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
| ||
|
Message-ID: <1513621815.4827.430.camel@coelho.fi> Date: Mon, 18 Dec 2017 20:30:15 +0200 From: Luca Coelho <luca@...lho.fi> To: Paul Menzel <pmenzel+linux-wireless@...gen.mpg.de>, Johannes Berg <johannes.berg@...el.com>, Emmanuel Grumbach <emmanuel.grumbach@...el.com>, Intel Linux Wireless <linuxwifi@...el.com> Cc: linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org, it+linux-wireless@...gen.mpg.de Subject: Re: UBSAN: Undefined behaviour in drivers/net/wireless/intel/iwlwifi/mvm/utils.c:838:5 On Wed, 2017-12-13 at 16:32 +0200, Luciano Coelho wrote: > On Wed, 2017-12-13 at 14:25 +0100, Paul Menzel wrote: > > Dear Linux folks, > > > > > > I enabled the undefined behavior sanitizer, and built Linus’ > > master > > branch under Ubuntu 17.10 with gcc (Ubuntu 7.2.0-8ubuntu3) 7.2.0. > > > > ``` > > $ grep UBSAN /boot/config-4.15.0-rc3+ > > CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y > > # CONFIG_ARCH_WANTS_UBSAN_NO_NULL is not set > > CONFIG_UBSAN=y > > CONFIG_UBSAN_SANITIZE_ALL=y > > # CONFIG_UBSAN_ALIGNMENT is not set > > CONFIG_UBSAN_NULL=y > > ``` > > > > Starting the system the messages below are printed. > > > > Starting the system and using the wireless device shows the > > messages > > below. > > Thanks for reporting! This shouldn't cause any problems, but I'll fix > it by checking that the mac80211_queue is not INVALID_QUEUE (255) > which seems to be the trigger for this warning. Can you try the following patch to see if the problem goes away? http://pastebin.coelho.fi/7b624f474846da52.txt Thanks! -- Cheers, Luca.
Powered by blists - more mailing lists