1
linux/security
Mimi Zohar 1df9f0a731 Integrity: IMA file free imbalance
The number of calls to ima_path_check()/ima_file_free()
should be balanced.  An extra call to fput(), indicates
the file could have been accessed without first being
measured.

Although f_count is incremented/decremented in places other
than fget/fput, like fget_light/fput_light and get_file, the
current task must already hold a file refcnt.  The call to
__fput() is delayed until the refcnt becomes 0, resulting
in ima_file_free() flagging any changes.

- add hook to increment opencount for IPC shared memory(SYSV),
  shmat files, and /dev/zero
- moved NULL iint test in opencount_get()

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
2009-02-06 09:05:33 +11:00
..
integrity/ima Integrity: IMA file free imbalance 2009-02-06 09:05:33 +11:00
keys keys: fix sparse warning by adding __user annotation to cast 2009-01-01 10:32:44 +11:00
selinux selinux: remove hooks which simply defer to capabilities 2009-02-02 09:20:34 +11:00
smack Revert "CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #2]" 2009-01-07 09:21:54 +11:00
capability.c Revert "CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #2]" 2009-01-07 09:21:54 +11:00
commoncap.c CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #3] 2009-01-07 09:38:48 +11:00
device_cgroup.c devcgroup: remove spin_lock() 2008-10-20 08:52:38 -07:00
inode.c securityfs: fix long-broken securityfs_create_file comment 2009-02-03 11:02:51 +11:00
Kconfig integrity: IMA as an integrity service provider 2009-02-06 09:05:30 +11:00
Makefile integrity: IMA as an integrity service provider 2009-02-06 09:05:30 +11:00
root_plug.c Revert "CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #2]" 2009-01-07 09:21:54 +11:00
security.c CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #3] 2009-01-07 09:38:48 +11:00