| commit | f5b40e363ad6041a96e3da32281d8faa191597b9 | [log] [tgz] |
|---|---|---|
| author | Linus Torvalds <torvalds@g5.osdl.org> | Sun May 07 10:49:33 2006 -0700 |
| committer | Linus Torvalds <torvalds@g5.osdl.org> | Sun May 07 10:49:33 2006 -0700 |
| tree | 5f35453cff7acd5df5622a108381bbd011a383c5 | |
| parent | 5528e568a760442e0ec8fd2dea1f0791875a066b [diff] |
Fix ptrace_attach()/ptrace_traceme()/de_thread() race This holds the task lock (and, for ptrace_attach, the tasklist_lock) over the actual attach event, which closes a race between attacking to a thread that is either doing a PTRACE_TRACEME or getting de-threaded. Thanks to Oleg Nesterov for reminding me about this, and Chris Wright for noticing a lost return value in my first version. Signed-off-by: Linus Torvalds <torvalds@osdl.org>