Date: Sat, 1 Jul 2017 13:28:47 -0400 From: Shawn Webb <shawn.webb@hardenedbsd.org> To: freebsd-current@freebsd.org Cc: kib@freebsd.org Subject: Reproducible panic with MAP_GUARD and security.bsd.stack_guard_page > 1 Message-ID: <20170701172847.v5hwzn6vhbrbiz2i@mutt-hbsd>
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[-- Attachment #1 --] When running my Stack Clash PoC on a vanilla FreeBSD 12-CURRENT/amd64 VM and security.bsd.stack_guard_page is > 1: https://goo.gl/photos/vZQY4B9jKJRLrNwP7 The PoC doesn't need to be run as root on vanilla FreeBSD with a default configuration. Thanks, -- Shawn Webb Cofounder and Security Engineer HardenedBSD GPG Key ID: 0x6A84658F52456EEE GPG Key Fingerprint: 2ABA B6BD EF6A F486 BE89 3D9E 6A84 658F 5245 6EEE [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEKrq2ve9q9Ia+iT2eaoRlj1JFbu4FAllX280ACgkQaoRlj1JF bu6zdBAAv9fOXMaGZWCl2nv9cC1UhloKBmAkih0LrNI3ESFqFkU25YG1sp4sEH2n Xg53eyZ04F4iSFIduRVD9+X8SlHcCMyX7eFuGWM/7vXXzcYxebknbqN6hF4XvhYL /Vg78mT720H3WgeYdG6ivQDDijyHkxs5C8dw/mEEPOW8nS5EjSaYSmRIRC9mhin2 dkaNG7uekcZTzjVK0VsogVw6GeHi2BtVAao3Zn4HzjI+/Qaza0rtJ7JtPjLreEj0 CLRJw+5osEElPPcZeQbGTc9J0iPYm8WJQXArDx1iKQwxUS0VBSz/qLkib0sr8yxD tXB1KCYKEO1aFwzlqze2hA5FXTPnmWF57xLZK6dATmbSjY1zyFPGx8t+CpQmWTeO pqkn3RWB+WGf0uFG3g/wCalivZsPu7kKtZdiKgCp2rXlTbfDJ9lEo/WncoTK4Zd1 3AyQZr6YXkIP6lbcqxuLTRtgmv4zPOYgGDo9cXV6o5Ncl824b3sMuG8RYnSyQO/K DO9IhyQZ5keQFmP+Mo1q1uqLRnux2xuIOpCEtChgg76kDxADwfOxKd943RU/V8Nb Lst0PULynPKMOytP4NkWXMwpwk4RZ6BAW71b/xkBe4cJy+jb3yZKda/zWKggPnUs BDbpKj93LFl2LCv3HTJ1+lbcDXE+BcJKp50kg7g1lgVSNV7Ioi0= =oqbe -----END PGP SIGNATURE-----
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