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Date: Mon, 5 Dec 2022 16:41:23 -0800 From: Kees Cook <keescook@...omium.org> To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: linux-kernel@...r.kernel.org, Alexander Viro <viro@...iv.linux.org.uk>, Alexey Dobriyan <adobriyan@...il.com>, Alexey Izbyshev <izbyshev@...ras.ru>, Andrei Vagin <avagin@...il.com>, Bernd Edlinger <bernd.edlinger@...mail.de>, Bo Liu <liubo03@...pur.com>, Christian Brauner <brauner@...nel.org>, David Hildenbrand <david@...hat.com>, Dmitry Safonov <0x7f454c46@...il.com>, Eric Biederman <ebiederm@...ssion.com>, Florian Weimer <fweimer@...hat.com>, Kees Cook <keescook@...omium.org>, Linus Torvalds <torvalds@...ux-foundation.org>, linux-fsdevel@...r.kernel.org, linux-mm@...ck.org, Liu Shixin <liushixin2@...wei.com>, Li Zetao <lizetao1@...wei.com>, Rolf Eike Beer <eb@...ix.com>, Wang Yufen <wangyufen@...wei.com> Subject: [GIT PULL] execve updates for v6.2-rc1 Hi Linus, Please pull these execve updates for v6.2-rc1. Most are small refactorings and bug fixes, but three things stand out: switching timens (which got reverted before) looks solid now, FOLL_FORCE has been removed (no failures seen yet across several weeks in -next), and some whitespace cleanups (which are long overdue). The latter does end up conflicting with changes from Al[1], but should be trivial to resolve. Thanks! -Kees [1] https://lore.kernel.org/linux-next/20221128143704.3fe8f7b1@canb.auug.org.au/ The following changes since commit 9abf2313adc1ca1b6180c508c25f22f9395cc780: Linux 6.1-rc1 (2022-10-16 15:36:24 -0700) are available in the Git repository at: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git tags/execve-v6.2-rc1 for you to fetch changes up to 6a46bf558803dd2b959ca7435a5c143efe837217: binfmt_misc: fix shift-out-of-bounds in check_special_flags (2022-12-02 13:57:04 -0800) ---------------------------------------------------------------- execve updates for v6.2-rc1 - Add timens support (when switching mm). This version has survived in -next for the entire cycle (Andrei Vagin). - Various small bug fixes, refactoring, and readability improvements (Bernd Edlinger, Rolf Eike Beer, Bo Liu, Li Zetao Liu Shixin). - Remove FOLL_FORCE for stack setup (Kees Cook). - Whilespace cleanups (Rolf Eike Beer, Kees Cook). ---------------------------------------------------------------- Andrei Vagin (2): fs/exec: switch timens when a task gets a new mm selftests/timens: add a test for vfork+exit Bernd Edlinger (1): exec: Copy oldsighand->action under spin-lock Bo Liu (1): binfmt_elf: replace IS_ERR() with IS_ERR_VALUE() Kees Cook (3): exec: Add comments on check_unsafe_exec() fs counting binfmt: Fix whitespace issues exec: Remove FOLL_FORCE for stack setup Li Zetao (1): fs/binfmt_elf: Fix memory leak in load_elf_binary() Liu Shixin (1): binfmt_misc: fix shift-out-of-bounds in check_special_flags Rolf Eike Beer (4): ELF uapi: add spaces before '{' exec: simplify initial stack size expansion binfmt_elf: fix documented return value for load_elf_phdrs() binfmt_elf: simplify error handling in load_elf_phdrs() Wang Yufen (1): binfmt: Fix error return code in load_elf_fdpic_binary() fs/binfmt_elf.c | 35 +++---- fs/binfmt_elf_fdpic.c | 7 +- fs/binfmt_misc.c | 8 +- fs/exec.c | 38 +++++--- include/linux/nsproxy.h | 1 + include/uapi/linux/elf.h | 14 +-- kernel/fork.c | 9 -- kernel/nsproxy.c | 23 ++++- tools/testing/selftests/timens/.gitignore | 1 + tools/testing/selftests/timens/Makefile | 2 +- tools/testing/selftests/timens/vfork_exec.c | 139 ++++++++++++++++++++++++++++ 11 files changed, 219 insertions(+), 58 deletions(-) create mode 100644 tools/testing/selftests/timens/vfork_exec.c -- Kees Cook
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