linux-ext4 - Re: 4.5.1: UBSAN: Undefined behaviour in ./arch/x86/include/asm/atomic.h:156:9

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>] [day] [month] [year] [list]

Date:	Thu, 21 Apr 2016 09:42:29 +0900
From:	Greg KH <greg@...ah.com>
To:	Martin MOKREJŠ <mmokrejs@...il.com>
Cc:	USB list <linux-usb@...r.kernel.org>, linux-ext4@...r.kernel.org
Subject: Re: 4.5.1: UBSAN: Undefined behaviour in
 ./arch/x86/include/asm/atomic.h:156:9

On Thu, Apr 21, 2016 at 12:22:49AM +0200, Martin MOKREJŠ wrote:
> Hi,
>   I am not certain to to forward this to, so I am trying linux-usb and ext4. Please add relevant people/lists, thank you.
> 
> # dmesg | grep "UBSAN: Undefined behaviour"
> [    2.638843] UBSAN: Undefined behaviour in drivers/usb/host/ehci-hub.c:873:47
> [    8.553620] UBSAN: Undefined behaviour in fs/ext4/mballoc.c:2612:15
> [   25.341048] UBSAN: Undefined behaviour in fs/ext4/mballoc.c:1274:11
> [   41.460542] UBSAN: Undefined behaviour in ./arch/x86/include/asm/atomic.h:156:9
> #
> 
> Full dmesg is attached.
> 
> Hope this helps,
> Martin

> [    0.000000] Linux version 4.5.1-default-pciehp (root@...tro) (gcc version 5.3.0 (Gentoo 5.3.0 p1.0, pie-0.6.5) ) #1 SMP Thu Apr 14 14:17:48 CEST 2016

Please try 4.6-rc4, a number of UBSAN issues have been fixed there.

thansk,

greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html