LDT should not be inherited on exec(), only on fork().
To sanitize that, the LDT initialization for a new process must be split
into parts and the actual duplication moved to arch_dup_mmap() which is
only called on fork(). This requires that arch_dup_mmap() gains a return
value.
Changes vs. V1:
Moved the duplication to arch_dup_mmap() as suggested by Linus.
Thanks,
tglx
---
arch/powerpc/include/asm/mmu_context.h | 5 +++--
arch/x86/kernel/ldt.c | 17 +++++------------
b/arch/um/include/asm/mmu_context.h | 3 ++-
b/arch/unicore32/include/asm/mmu_context.h | 5 +++--
b/arch/x86/include/asm/mmu_context.h | 24 ++++++++++++++++--------
include/asm-generic/mm_hooks.h | 5 +++--
kernel/fork.c | 3 +--
tools/testing/selftests/x86/ldt_gdt.c | 9 +++------
8 files changed, 36 insertions(+), 35 deletions(-)
