Messages in this thread | | | From | Kees Cook <> | Date | Mon, 13 Feb 2017 16:26:39 -0800 | Subject | Re: [PATCH v2 1/4] seccomp: Add sysctl to display available actions |
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On Mon, Feb 13, 2017 at 4:25 PM, Tyler Hicks <tyhicks@canonical.com> wrote: > kmemleak doesn't complain if we save it to a global. That makes sense > because it means that we have a persistent reference to the allocated > memory. > > However, kmemleak doesn't complain about this allocation as-is (meaning > that I simply removed the call to kmemleak_not_leak()). From what I can > tell, this is because a reference to the allocated ctl_table_header > struct is saved when __register_sysctl_table() calls init_header(). I > think kmemleak is seeing this reference when doing scans and > (incorrectly) thinking that there's no leak. > > I think the safest/cleanest thing to do is leave the call to > kmemleak_not_leak(). Let me know if you disagree.
Okay, that's cool. :) Thanks for checking!
-Kees
-- Kees Cook Pixel Security
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