Re: [PATCH v2] keys: Fix UAF in key_put()

Linus Torvalds torvalds@linuxfoundation.org wrote:

We really should have "test_bit_acquire()" and "set_bit_release()".

I considered using test_bit_acquire() but, as you say, there's no set_bit_release() as yet. I could switch things to initialise the flag to set on key creation and clear the flag instead.

David