| commit | df54d6fa54275ce59660453e29d1228c2b45a826 | |
| author | Radu Caragea <sinaelgl@gmail.com> | |
| Tue, 13 Aug 2013 23:00:59 +0000 (13 16:00 -0700) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Wed, 14 Aug 2013 00:57:49 +0000 (13 17:57 -0700) | ||
| tree | 8e8c54da4a1cd7f9caca46b2b39d673c3bf7f793 | treesnapshot (tar.gz zip) |
| parent | c7dd3392ad469e6ba125170ad29f881bed85b678 | commitdiff |
x86 get_unmapped_area(): use proper mmap base for bottom-up direction
When the stack is set to unlimited, the bottomup direction is used for
mmap-ings but the mmap_base is not used and thus effectively renders
ASLR for mmapings along with PIE useless.
Cc: Michel Lespinasse <walken@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Sendroiu <molecula2788@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When the stack is set to unlimited, the bottomup direction is used for
mmap-ings but the mmap_base is not used and thus effectively renders
ASLR for mmapings along with PIE useless.
Cc: Michel Lespinasse <walken@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Sendroiu <molecula2788@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| arch/x86/kernel/sys_x86_64.c | diffblobblamehistory | |
| arch/x86/mm/mmap.c | diffblobblamehistory | |
| include/linux/sched.h | diffblobblamehistory |