linux/arch/tile
Chris Metcalf 1deb9c5dfb arch/tile: don't allow user code to set the PL via ptrace or signal return
The kernel was allowing any component of the pt_regs to be updated either
by signal handlers writing to the stack, or by processes writing via
PTRACE_POKEUSR or PTRACE_SETREGS, which meant they could set their PL
up from 0 to 1 and get access to kernel code and data (or, in practice,
cause a kernel panic).  We now always reset the ex1 field, allowing the
user to set their ICS bit only.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2010-11-01 15:31:17 -04:00
..
configs defconfig reduction 2010-08-14 22:26:53 +02:00
include arch/tile: complete migration to new kmap_atomic scheme 2010-11-01 15:30:36 -04:00
kernel arch/tile: don't allow user code to set the PL via ptrace or signal return 2010-11-01 15:31:17 -04:00
kvm arch/tile: parameterize system PLs to support KVM port 2010-10-15 15:38:09 -04:00
lib arch/tile: complete migration to new kmap_atomic scheme 2010-11-01 15:30:36 -04:00
mm arch/tile: avoid __must_check warning on one strict_strtol check 2010-11-01 15:30:53 -04:00
Kbuild
Kconfig Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2010-10-28 16:16:39 -07:00
Kconfig.debug
Makefile arch/tile: parameterize system PLs to support KVM port 2010-10-15 15:38:09 -04:00