Messages in this thread | | | Date | Thu, 16 Feb 2006 15:50:15 -0600 | From | "Christopher Friesen" <> | Subject | Re: [patch 0/6] lightweight robust futexes: -V3 |
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Ingo Molnar wrote:
> basically, ->futex_offset is not blindly trusted by the kernel either: > it's simply used to calculate a "userspace pointer" value, which it then > uses in a (secure) get_user() access, to do a FUTEX_WAKEUP. [Note that > FUTEX_WAKEUP is already done at do_exit() time via the ->clear_child_tid > userspace pointer.] All in one: this is totally safe.
As mentioned by Paul...how do you deal with 32/64 compatibility where your pointers are different sizes?
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