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:	Fri, 04 Jul 2008 15:40:19 +0900
From:	Tejun Heo <>
To:	"Eric W. Biederman" <>
CC:	Greg Kroah-Hartman <>,
	Andrew Morton <>,
	Daniel Lezcano <>,, Al Viro <>,
	Linux Containers <>,
	Benjamin Thery <>,
Subject: Re: [PATCH 06/15] Introduce sysfs_sd_setattr and fix sysfs_chmod

Eric W. Biederman wrote:
> Currently sysfs_chmod calls sys_setattr which in turn calls
> inode_change_ok which checks to see if it is ok for the current user
> space process to change tha attributes. Since sysfs_chmod_file has
> only kernel mode clients denying them permission if user space is the
> problem is completely inappropriate.
> Therefore factor out sysfs_sd_setattr which does not call
> inode_change_ok and modify sysfs_chmod_file to call it.
> In addition setting victim_sd->s_mode explicitly in sysfs_chmod_file
> is redundant so remove that as well.
> Thanks to Tejun Heo <>, and
> Daniel Lezcano <> for working on this
> and spotting this case.
> Signed-off-by: Eric W. Biederman <>

Acked-by: Tejun Heo <>

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists