Kees Cook 4fd72a1776 Yama: Check for pid death before checking ancestry ... commit 9474f4e7cd upstream. It's possible that a pid has died before we take the rcu lock, in which case we can't walk the ancestry list as it may be detached. Instead, check for death first before doing the walk. Reported-by: syzbot+a9ac39bf55329e206219@syzkaller.appspotmail.com Fixes: 2d514487fa ("security: Yama LSM") Cc: stable@vger.kernel.org Suggested-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: James Morris <james.morris@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-01-23 08:10:54 +01:00
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Kconfig	Yama: remove needless CONFIG_SECURITY_YAMA_STACKED	2015-07-28 13:18:19 +10:00
Makefile	…
yama_lsm.c	Yama: Check for pid death before checking ancestry	2019-01-23 08:10:54 +01:00