linux-kernel - Re: [PATCH] kernel: kallsyms: parameters checking, for EXPORT_SYMBOL

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>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <51663BA6.1020500@asianux.com>
Date:	Thu, 11 Apr 2013 12:27:18 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	Rusty Russell <rusty@...tcorp.com.au>
CC:	Stephen Boyd <sboyd@...eaurora.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kernel: kallsyms: parameters checking, for EXPORT_SYMBOL_GPL
 functions

On 2013年04月11日 10:52, Rusty Russell wrote:
>>> >> Or is someone already doing this?
>>> >> 
>> >
>> >   really has:
>> >
>> >     kernel: __wake_up_sync_key in kernel/sched/core.c.
>> >     lib: *printf.
>> >     mm:  kfree.
> No, I mean "is someone calling these functions with NULL".
> 
> Cheers,
> Rusty.
> 
> 

  often "kfree(NULL)", that is ok. it will let caller easier using it.
  also often give 0 size to snprintf, it still let caller easy using.

  if we treat EXPORT functions of kallsyms as commonly used (or we want to)
    I suggest to give parameter check for them.


  thanks.

  :-)

-- 
Chen Gang

Asianux Corporation
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/