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Date: Wed, 19 Oct 2022 13:35:18 +0200 From: Christian Brauner <brauner@...nel.org> To: Kees Cook <keescook@...omium.org> Cc: Eric Biederman <ebiederm@...ssion.com>, linux-fsdevel@...r.kernel.org, Jann Horn <jannh@...gle.com>, Andy Lutomirski <luto@...nel.org>, David Laight <David.Laight@...LAB.COM>, linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org Subject: Re: [PATCH] exec: Add comments on check_unsafe_exec() fs counting On Tue, Oct 18, 2022 at 12:17:24AM -0700, Kees Cook wrote: > Add some comments about what the fs counting is doing in > check_unsafe_exec() and how it relates to the call graph. > Specifically, we can't force an unshare of the fs because > of at least Chrome: > https://lore.kernel.org/lkml/86CE201B-5632-4BB7-BCF6-7CB2C2895409@chromium.org/ > > Cc: Eric Biederman <ebiederm@...ssion.com> > Cc: linux-fsdevel@...r.kernel.org > Signed-off-by: Kees Cook <keescook@...omium.org> > --- Acked-by: Christian Brauner (Microsoft) <brauner@...nel.org>
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