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author | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2009-02-04 17:07:02 +0300 |
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committer | James Morris <jmorris@namei.org> | 2009-02-06 01:05:33 +0300 |
commit | 1df9f0a73178718969ae47d813b8e7aab2cf073c (patch) | |
tree | 6bd3d8838858f0e93acd8f7969b7d0e5ce2bfb08 /drivers | |
parent | f4bd857bc8ed997c25ec06b56ef8064aafa6d4f3 (diff) | |
download | linux-1df9f0a73178718969ae47d813b8e7aab2cf073c.tar.xz |
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>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions