From: Kyle McMartin <kyle@mcmartin.ca>
Date: Tue, 7 Feb 2006 20:58:47 +0000 (-0800)
Subject: [PATCH] sys_hpux: fix strlen_user() race
X-Git-Tag: v2.6.16-rc3~117
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1fcbf053e55e961112f237dc690129f0858156f1;p=pandora-kernel.git

[PATCH] sys_hpux: fix strlen_user() race

Userspace can alter the string after the kernel has run strlen_user().

Also: the strlen_user() return value includes the \0, so fix that.

Also: handle EFAULT from strlen_user().

It's unlikely anyone is using this code.  Very, very unlikely.  If I
remember correctly, CONFIG_HPUX turns this code on, but one would actually
need CONFIG_BINFMT_SOM to load a binary that could cause a problem, and
BINFMT_SOM has had an #error in it for quite some time.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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