Messages in this thread | | | Date | Mon, 15 Mar 2021 14:19:12 +0100 | From | Oleg Nesterov <> | Subject | Re: [PATCH] prctl: fix PR_SET_MM_AUXV kernel stack leak |
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On 03/15, Cyrill Gorcunov wrote: > > On Mon, Mar 15, 2021 at 01:08:03PM +0100, Oleg Nesterov wrote: > > > > > And why task_lock(current) ? What does it try to protect? > > As far as I remember this was related to reading from procfs > at time the patch was written for first time. Looks like this > not relevant anymore and could be dropped.
I think this was never relevant, ->alloc_lock is per-thread, not per mm.
Oleg.
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