Date: Mon, 3 Jan 2022 09:07:12 -0500 From: Shawn Webb <shawn.webb@hardenedbsd.org> To: "Jason A. Harmening" <jah@FreeBSD.org> Cc: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: Re: git: 9e891d43f586 - main - unionfs: implement VOP_SET_TEXT/VOP_UNSET_TEXT Message-ID: <20220103140712.txfy3jj6hvdnutxt@mutt-hbsd> In-Reply-To: <202201030345.2033jP6T052711@gitrepo.freebsd.org> References: <202201030345.2033jP6T052711@gitrepo.freebsd.org>
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--gk4jwmfzkj6jv4wo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jan 03, 2022 at 03:45:25AM +0000, Jason A. Harmening wrote: > The branch main has been updated by jah: >=20 > URL: https://cgit.FreeBSD.org/src/commit/?id=3D9e891d43f586e91541bd61fb12= 550de296d76fd9 >=20 > commit 9e891d43f586e91541bd61fb12550de296d76fd9 > Author: Jason A. Harmening <jah@FreeBSD.org> > AuthorDate: 2021-12-21 23:51:51 +0000 > Commit: Jason A. Harmening <jah@FreeBSD.org> > CommitDate: 2022-01-03 03:52:58 +0000 >=20 > unionfs: implement VOP_SET_TEXT/VOP_UNSET_TEXT > =20 > The implementation simply passes the text ref to the appropriate > underlying vnode. Without this, the default [un]set_text > implementation will only manage the text ref on the unionfs vnode, > causing it to be out of sync with the underlying filesystems and > potentially allowing corruption of executable file contents. > On INVARIANTS kernels, it also readily produces a panic on process > termination because the VM object representing the executable mapping > is backed by the underlying vnode, not the unionfs vnode. > =20 > PR: 251342 > Reviewed by: kib > Differential Revision: https://reviews.freebsd.org/D33611 Hey Jason, Thanks for working on unionfs! I'm wondering if MFC'ing all the recent unionfs work to 13-stable is planned (or possible). Thanks, --=20 Shawn Webb Cofounder / Security Engineer HardenedBSD https://git.hardenedbsd.org/hardenedbsd/pubkeys/-/raw/master/Shawn_Webb/03A= 4CBEBB82EA5A67D9F3853FF2E67A277F8E1FA.pub.asc --gk4jwmfzkj6jv4wo Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEA6TL67gupaZ9nzhT/y5nonf44foFAmHTAw0ACgkQ/y5nonf4 4fr+xA/+K+0NiKkeazHXk4Br7jYZIcoHzFWihUSq5Xu+y+OIxEScstvyMzrfPlfl Xs+EKNGviwLASFB4FVnJuWLYVRsDD0AjJSgg9psmV24PDKY9oxn6xA7qsRgVKdfi PFa/Cf1reDbj1zZzkyb/6VJ8ZdnAjhQijwyhqfvJLeGqJ3dL7dNHcmhtOnuKYnAy z1tfft84sujPNOrrKdH8z9JXmNQr97NIjRMHVVjpXMpvZtOd/MW93zfRgqS7d8kl oZgbvJhAOGpDh6aPwOA8NZWIeJUNuRwjN8IF76aELH9ZK9gPgEDnnh4F3vPzYaun nwEMq+QXf7TUA0w2zTYXbsmw10Qt4U2YlyiKXj3gyDrFZhE3m0q/3ywtMlDQaDj5 Jffu9BJ4tQkb1lthhDe6+d12BCOkoYOgRSzreLpCpBoeXNXkmjNOukgRaU0N0Hpw Qdik/ZV8+lgmciyildGIHfEFr9Jmzs0AEIImF/qUckf9sk/URr56yfMNNGr6czYH 3JNOhSeiY34ITiS6R8MBpVWInViFGjgduBujpEXn09MOrGLoM/WAGw/QN3GFkC5S jL2zrAD7fhATVEjzpNUgjQ/oGZ504TbAL2IBBwBf66N8tMQ8IQbidjEzkHC5GAjY JPh1QbEZSz3sd5A3gP7HxWk52SWYSGgam8V6HcVltJrU/nVCDwk= =enD7 -----END PGP SIGNATURE----- --gk4jwmfzkj6jv4wo--
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