linux-kernel - Re: [PATCH] proc: pagemap: Hold mmap

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] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 2 Apr 2010 09:30:58 -0500
From:	Matt Mackall <mpm@...enic.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	San Mehat <san@...gle.com>, linux-kernel@...r.kernel.org,
	Brian Swetland <swetland@...gle.com>,
	Dave Hansen <haveblue@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	n-horiguchi@...jp.nec.com
Subject: Re: [PATCH] proc: pagemap: Hold mmap_sem during page walk

On Fri, Apr 02, 2010 at 09:11:29AM +0900, KAMEZAWA Hiroyuki wrote:

>  	int ret = -ESRCH;
...
> +	pm.len = PM_ENTRY_BYTES * (PAGEMAP_WALK_SIZE >> PAGE_SHIFT);
> +	pm.buffer = kmalloc(pm.len, GFP_TEMPORARY);
> +	if (!pm.buffer)
>  		goto out_mm;
...
>  out_mm:
>  	mmput(mm);

Looks like this gets the wrong return code?

-- 
Mathematics is the supreme nostalgia of our time.
--
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/