Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space visible fashion. | KernelTrap

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space visible fashion.

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From: Christoph Hellwig <hch@...>

To: Eric W. Biederman <ebiederm@...>

Cc: Andrew Morton <akpm@...>, <linux-kernel@...>

Subject: Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space visible fashion.

Date: Tuesday, August 28, 2007 - 7:04 pm

On Tue, Aug 28, 2007 at 04:40:15PM -0600, Eric W. Biederman wrote:
quoted text> +When:	September 2010
> +Option: CONFIG_SYSCTL_SYSCALL
> +Why:	The same information is available in a more convenient from
> +	/proc/sys, and none of the sysctl variables appear to be
> +	important performance wise.
> +
> +	Binary sysctls are a long standing source of subtle kernel
> +	bugs and security issues.
> +
> +	When I looked several months ago all I could find after
> +	searching several distributions were 5 user space programs and
> +	glibc (which falls back to /proc/sys) using this syscall.

Umm, no way we're ever going to remove a syscall like this.  Please
stop this deprecration crap.  Just make sure no ones adds more binary
sysctls.

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Messages in current thread:

[PATCH] sysctl: Deprecate sys_sysctl in a user space visible..., Eric W. Biederman, (Tue Aug 28, 6:40 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Christoph Hellwig, (Tue Aug 28, 7:04 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Eric W. Biederman, (Tue Aug 28, 7:53 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., H. Peter Anvin, (Tue Aug 28, 9:31 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Eric W. Biederman, (Tue Aug 28, 9:56 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Alan Cox, (Wed Aug 29, 6:46 am)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Eric W. Biederman, (Wed Aug 29, 1:16 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., David Newall, (Thu Aug 30, 9:20 am)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Eric W. Biederman, (Thu Aug 30, 1:40 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., H. Peter Anvin, (Wed Aug 29, 1:28 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Eric W. Biederman, (Wed Aug 29, 3:00 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Theodore Tso, (Thu Aug 30, 8:13 am)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Andrew Morton, (Wed Aug 29, 6:51 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Rob Landley, (Thu Aug 30, 3:32 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Andi Kleen, (Sat Sep 1, 6:16 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Rob Landley, (Sun Sep 2, 4:44 am)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., H. Peter Anvin, (Sun Sep 2, 4:54 am)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Rob Landley, (Sun Sep 2, 7:05 am)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Eric W. Biederman, (Sun Sep 2, 3:56 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Al Viro, (Sun Sep 2, 4:00 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Andi Kleen, (Mon Sep 3, 4:37 am)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Al Viro, (Mon Sep 3, 5:16 am)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Eric W. Biederman, (Sun Sep 2, 5:51 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Christoph Hellwig, (Thu Aug 30, 2:34 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Rob Landley, (Thu Aug 30, 7:22 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Eric W. Biederman, (Thu Aug 30, 2:57 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Andrew Morton, (Wed Aug 29, 12:49 am)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Jan Engelhardt, (Thu Aug 30, 2:56 pm)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Andrew Morton, (Wed Aug 29, 12:49 am)

Re: [PATCH] sysctl: Deprecate sys_sysctl in a user space vis..., Eric W. Biederman, (Wed Aug 29, 1:24 am)

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