Re: [PATCH v2 0/8] exec: Control flow simplifications

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On Mon, May 18, 2020 at 07:29:00PM -0500, Eric W. Biederman wrote:
>  arch/alpha/kernel/binfmt_loader.c  | 11 +----
>  fs/binfmt_elf.c                    |  4 +-
>  fs/binfmt_elf_fdpic.c              |  4 +-
>  fs/binfmt_em86.c                   | 13 +----
>  fs/binfmt_misc.c                   | 69 ++++-----------------------
>  fs/binfmt_script.c                 | 82 ++++++++++++++------------------
>  fs/exec.c                          | 97 ++++++++++++++++++++++++++------------
>  include/linux/binfmts.h            | 36 ++++++--------
>  include/linux/lsm_hook_defs.h      |  3 +-
>  include/linux/lsm_hooks.h          | 52 +++++++++++---------
>  include/linux/security.h           | 14 ++++--
>  kernel/cred.c                      |  3 ++
>  security/apparmor/domain.c         |  7 +--
>  security/apparmor/include/domain.h |  2 +-
>  security/apparmor/lsm.c            |  2 +-
>  security/commoncap.c               |  9 ++--
>  security/security.c                |  9 +++-
>  security/selinux/hooks.c           |  8 ++--
>  security/smack/smack_lsm.c         |  9 ++--
>  security/tomoyo/tomoyo.c           | 12 ++---
>  20 files changed, 202 insertions(+), 244 deletions(-)

Oh, BTW, heads up on this (trivially but annoyingly) conflicting with
the copy_strings_kernel/copy_string/kernel change:

https://ozlabs.org/~akpm/mmotm/broken-out/exec-simplify-the-copy_strings_kernel-calling-convention.patch

Is it worth pulling that and these into your tree?

https://ozlabs.org/~akpm/mmotm/broken-out/exec-open-code-copy_string_kernel.patch

https://ozlabs.org/~akpm/mmotm/broken-out/umh-fix-refcount-underflow-in-fork_usermode_blob.patch


-- 
Kees Cook



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