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| author |   Aleksa Sarai <cyphar@cyphar.com> | 2019-10-01 11:10:53 +1000 |
|---|---|---|
| committer |   Christian Brauner <christian.brauner@ubuntu.com> | 2019-10-01 15:45:10 +0200 |
| commit | f14c234b4bc5184fd40d9a47830e5b32c3b36d49 (patch) | |
| tree | 03dd3b1cb5035fa6cec8389cf10ea30ddd1ec3e3 /include | |
| parent | lib: introduce copy_struct_from_user() helper (diff) | |
| download | linux-dev-f14c234b4bc5184fd40d9a47830e5b32c3b36d49.tar.xz linux-dev-f14c234b4bc5184fd40d9a47830e5b32c3b36d49.zip | |
clone3: switch to copy_struct_from_user()
Switch clone3() syscall from it's own copying struct clone_args from
userspace to the new dedicated copy_struct_from_user() helper.
The change is very straightforward, and helps unify the syscall
interface for struct-from-userspace syscalls. Additionally, explicitly
define CLONE_ARGS_SIZE_VER0 to match the other users of the
struct-extension pattern.
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
[christian.brauner@ubuntu.com: improve commit message]
Link: https://lore.kernel.org/r/20191001011055.19283-3-cyphar@cyphar.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/sched.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/sched.h b/include/uapi/linux/sched.h index b3105ac1381a..0945805982b4 100644 --- a/include/uapi/linux/sched.h +++ b/include/uapi/linux/sched.h @@ -47,6 +47,8 @@ struct clone_args { __aligned_u64 tls; }; +#define CLONE_ARGS_SIZE_VER0 64 /* sizeof first published struct */ + /* * Scheduling policies */ |