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Kees Cook 2e4930eb7c Yama: handle 32-bit userspace prctl 
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>
Cc: stable@vger.kernel.org
Signed-off-by: James Morris <james.l.morris@oracle.com>
2012-09-08 01:06:14 +10:00
..
apparmor split ->file_mmap() into ->mmap_addr()/->mmap_file() 2012-05-31 13:11:54 -04:00
integrity ima: enable the IBM vTPM as the default TPM in the PPC64 case 2012-08-22 16:23:23 -05:00
keys tpm: Move tpm_get_random api into the TPM device driver 2012-08-22 11:11:33 -05:00
selinux selinux: tag avc cache alloc as non-critical 2012-07-31 18:42:47 -07:00
smack smack: off by one error 2012-07-30 15:04:17 +10:00
tomoyo Merge branch 'master' of git://git.infradead.org/users/eparis/selinux into next 2012-05-22 11:21:06 +10:00
yama Yama: handle 32-bit userspace prctl 2012-09-08 01:06:14 +10:00
capability.c split ->file_mmap() into ->mmap_addr()/->mmap_file() 2012-05-31 13:11:54 -04:00
commoncap.c split ->file_mmap() into ->mmap_addr()/->mmap_file() 2012-05-31 13:11:54 -04:00
device_cgroup.c cgroup: convert all non-memcg controllers to the new cftype interface 2012-04-01 12:09:55 -07:00
inode.c securityfs: fix object creation races 2012-01-10 10:20:35 -05:00
Kconfig KEYS: Move the key config into security/keys/Kconfig 2012-05-11 10:56:56 +01:00
lsm_audit.c LSM: BUILD_BUG_ON if the common_audit_data union ever grows 2012-04-09 12:23:03 -04:00
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: allow Yama to be unconditionally stacked 2012-09-05 14:12:31 -07:00