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Subject[patch] bug fix: tss->io_bitmap_owner is never set to non-NULL.

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

The below patch corrects this.

Signed-off-by: Bart Oldeman <>

--- arch/i386/kernel/ 2005-09-17 17:20:19.000000000 +1200
+++ arch/i386/kernel/traps.c 2005-09-17 22:33:00.000000000 +1200
@@ -489,6 +489,7 @@ fastcall void __kprobes do_general_prote
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;
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