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| author |   Eric Paris <eparis@redhat.com> | 2007-12-04 23:45:31 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-12-05 09:21:21 -0800 |
| commit | ecaf18c15aac8bb9bed7b7aa0e382fe252e275d5 (patch) | |
| tree | cefce88c3d253992f939c2f8a1b66b8932272cbb /arch/um/Makefile-i386 | |
| parent | SLUB's ksize() fails for size > 2048 (diff) | |
| download | linux-dev-ecaf18c15aac8bb9bed7b7aa0e382fe252e275d5.tar.xz linux-dev-ecaf18c15aac8bb9bed7b7aa0e382fe252e275d5.zip | |
VM/Security: add security hook to do_brk
Given a specifically crafted binary do_brk() can be used to get low pages
available in userspace virtual memory and can thus be used to circumvent
the mmap_min_addr low memory protection. Add security checks in do_brk().
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Alan Cox <alan@redhat.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Cc: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions