From: Bart Oldeman <bartoldeman@users.sourceforge.net>
Date: Sun, 30 Oct 2005 22:59:29 +0000 (-0800)
Subject: [PATCH] x86: initialise tss->io_bitmap_owner to something
X-Git-Tag: v2.6.15-rc1~59^2~15^2~172
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d5cd4aadd3d220afac8e3e6d922e333592551f7d;p=linux-2.6

[PATCH] x86: initialise tss->io_bitmap_owner to something

There exists a field io_bitmap_owner in the TSS that is only checked, but
never set to anything else but NULL.

Signed-off-by: Bart Oldeman <bartoldeman@users.sourceforge.net>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 19e90bdd84..c34d1bfc51 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -488,6 +488,7 @@ fastcall void __kprobes do_general_protection(struct pt_regs * regs,
 				tss->io_bitmap_max - thread->io_bitmap_max);
 		tss->io_bitmap_max = thread->io_bitmap_max;
 		tss->io_bitmap_base = IO_BITMAP_OFFSET;
+		tss->io_bitmap_owner = thread;
 		put_cpu();
 		return;
 	}