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  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Thu, 17 Mar 2022 14:38:46 -0400
From:   Steven Rostedt <>
To:     Sven Schnelle <>
Cc:     Ritesh Harjani <>,,
        Jan Kara <>, "Theodore Ts'o" <>,
        Harshad Shirwadkar <>,,,,
Subject: Re: [PATCHv3 02/10] ext4: Fix ext4_fc_stats trace point

On Thu, 17 Mar 2022 17:11:42 +0100
Sven Schnelle <> wrote:

> Looking at the oops output again made me realizes that the snprintf
> tries to write into pages that are mapped RO. Talking to Heiko he
> mentioned that s390 maps rodata/text RO when setting up the initial
> mapping while x86 has a RW mapping in the beginning and changes that
> later to RO. I haven't verified that, but that might be a reason why it
> works on x86.

Yes, I discovered this too. I'm currently looking to see how to fix it.

-- Steve

Powered by blists - more mailing lists