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| author | Richard Guy Briggs <[email protected]> | 2014-03-15 22:42:34 +0000 |
|---|---|---|
| committer | Eric Paris <[email protected]> | 2014-09-23 20:37:56 +0000 |
| commit | 9eab339b197a6903043d272295dcb716ff739b21 (patch) | |
| tree | 4f8c204a04b59bc20e679f84f1d6b28f79fcce2c /tools/perf/scripts/python/futex-contention.py | |
| parent | audit: remove open_arg() function that is never used (diff) | |
| download | kernel-9eab339b197a6903043d272295dcb716ff739b21.tar.gz kernel-9eab339b197a6903043d272295dcb716ff739b21.zip | |
audit: get comm using lock to avoid race in string printing
When task->comm is passed directly to audit_log_untrustedstring() without
getting a copy or using the task_lock, there is a race that could happen that
would output a NULL (\0) in the output string that would effectively truncate
the rest of the report text after the comm= field in the audit, losing fields.
Use get_task_comm() to get a copy while acquiring the task_lock to prevent
this and to prevent the result from being a mixture of old and new values of
comm.
Signed-off-by: Tetsuo Handa <[email protected]>
Signed-off-by: Richard Guy Briggs <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/futex-contention.py')
0 files changed, 0 insertions, 0 deletions