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authorLinus Torvalds <torvalds@linux-foundation.org>2022-12-12 08:42:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-12-12 08:42:29 -0800
commit7fc035058eab3a485060374d78012708524ca133 (patch)
treeaaa4331d386601977618d2b413dd05097319aff7 /kernel/fork.c
parent667161ba0a1c5badc5c40fc45cf62a6d62883710 (diff)
parent6a46bf558803dd2b959ca7435a5c143efe837217 (diff)
Merge tag 'execve-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull execve updates from Kees Cook: "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). - 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) - Whitespace cleanups (Rolf Eike Beer, Kees Cook)" * tag 'execve-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: binfmt_misc: fix shift-out-of-bounds in check_special_flags binfmt: Fix error return code in load_elf_fdpic_binary() exec: Remove FOLL_FORCE for stack setup binfmt_elf: replace IS_ERR() with IS_ERR_VALUE() binfmt_elf: simplify error handling in load_elf_phdrs() binfmt_elf: fix documented return value for load_elf_phdrs() exec: simplify initial stack size expansion binfmt: Fix whitespace issues exec: Add comments on check_unsafe_exec() fs counting ELF uapi: add spaces before '{' selftests/timens: add a test for vfork+exit fs/exec: switch timens when a task gets a new mm
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c9
1 files changed, 0 insertions, 9 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 844dfdc8c639..cfb09ca1b1bc 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2046,15 +2046,6 @@ static __latent_entropy struct task_struct *copy_process(
return ERR_PTR(-EINVAL);
}
- /*
- * If the new process will be in a different time namespace
- * do not allow it to share VM or a thread group with the forking task.
- */
- if (clone_flags & (CLONE_THREAD | CLONE_VM)) {
- if (nsp->time_ns != nsp->time_ns_for_children)
- return ERR_PTR(-EINVAL);
- }
-
if (clone_flags & CLONE_PIDFD) {
/*
* - CLONE_DETACHED is blocked so that we can potentially