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Kees Cook 7d0fcfec4c Yama: handle 32-bit userspace prctl 
commit 2e4930eb7c upstream.

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 <keescook@chromium.org>
Acked-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-07 08:32:28 -07:00
..
apparmor lsm_audit: don't specify the audit pre/post callbacks in 'struct common_audit_data' 2012-04-03 09:49:59 -07:00
integrity security: fix ima kconfig warning 2012-02-28 11:01:15 +11:00
keys usermodehelper: kill umh_wait, renumber UMH_* constants 2012-03-23 16:58:41 -07:00
selinux posix_types.h: Cleanup stale __NFDBITS and related definitions 2012-08-09 08:31:39 -07:00
smack Smack: move label list initialization 2012-04-18 12:02:28 +10:00
tomoyo usermodehelper: use UMH_WAIT_PROC consistently 2012-03-23 16:58:41 -07:00
yama Yama: handle 32-bit userspace prctl 2012-10-07 08:32:28 -07:00
capability.c security: create task_free security callback 2012-02-10 09:14:51 +11:00
commoncap.c security: fix compile error in commoncap.c 2012-04-19 12:56:39 +10:00
device_cgroup.c cgroup: remove cgroup_subsys argument from callbacks 2012-02-02 09:20:22 -08:00
inode.c securityfs: fix object creation races 2012-01-10 10:20:35 -05:00
Kconfig security: Yama LSM 2012-02-10 09:18:52 +11:00
lsm_audit.c lsm_audit: don't specify the audit pre/post callbacks in 'struct common_audit_data' 2012-04-03 09:49:59 -07:00
Makefile security: Yama LSM 2012-02-10 09:18:52 +11:00
min_addr.c mmap_min_addr check CAP_SYS_RAWIO only for write 2010-04-23 08:56:31 +10:00
security.c security: trim security.h 2012-02-14 10:45:42 +11:00