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authorEric Paris <eparis@redhat.com>2007-12-19 13:59:32 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2008-02-08 12:01:43 -0800
commita0209f336a1dff0363b558a972eb71eef74e0084 (patch)
tree4f2afc5e7f0ac562a27ea9ba6c46fda7ca72997e /drivers/telephony
parentf6055bdd46a2b964f09d02056a251bbf5a8ce9ef (diff)
VM/Security: add security hook to do_brk (CVE-2007-6434)
patch ecaf18c15aac8bb9bed7b7aa0e382fe252e275d5 in mainline. 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> Cc: maximilian attems <max@stro.at> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/telephony')
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