On Thu, Sep 30, 2021 at 04:55:37PM +0300, Alexander Popov wrote: > The kernel can hit warning and omit calling __warn() that prints the message. > But pkill_on_warn action should be taken each time. > > As I can understand now, include/asm-generic/bug.h defines three warning > implementations: > 1. CONFIG_BUG=y and the arch provides __WARN_FLAGS. In that case pkill_on_warn > should be checked in report_bug() that you mention. > 2. CONFIG_BUG=y and the arch doesn't have __WARN_FLAGS. In that case > pkill_on_warn should be checked in warn_slowpath_fmt(). > 3. CONFIG_BUG is not set. In that case pkill_on_warn should not be considered. > > Please, correct me if needed. That looks correct to me, yes. -- Kees Cook
