On Tue, 2018-09-18 at 15:49 +0200, Greg Kroah-Hartman wrote:
> On Tue, Sep 18, 2018 at 12:52:57AM +0100, Dmitry Safonov wrote:
> > Make sure under CONFIG_LOCKDEP that each change to line discipline
> > is done with held write semaphor.
> > Otherwise potential reader will have a good time dereferenc
On Tue, Sep 18, 2018 at 12:52:57AM +0100, Dmitry Safonov wrote:
> Make sure under CONFIG_LOCKDEP that each change to line discipline
> is done with held write semaphor.
> Otherwise potential reader will have a good time dereferencing
> incomplete/uninitialized ldisc.
Note, I don't see patch 5/7 he
Make sure under CONFIG_LOCKDEP that each change to line discipline
is done with held write semaphor.
Otherwise potential reader will have a good time dereferencing
incomplete/uninitialized ldisc.
An exception here is tty_ldisc_open(), as it's called without ldisc_sem
locked by tty_init_dev() => tt
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