On Mon, 27 Aug 2012, Kees Cook wrote: > When running a 64-bit kernel and receiving prctls from a 32-bit > userspace, the "-1" used as an unsigned long will end up being > misdetected. The kernel is looking for 0xffffffffffffffff instead of > 0xffffffff. Since prctl lacks a distinct compat interface, Yama needs > to handle this translation itself. As such, support either value as > meaning PR_SET_PTRACER_ANY, to avoid breaking the ABI for 64-bit. > > Signed-off-by: Kees Cook <keesc...@chromium.org> > Cc: sta...@vger.kernel.org
Applied to git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
