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| author | Aleksa Sarai <cyphar@cyphar.com> | 2019-10-01 11:10:54 +1000 |
|---|---|---|
| committer | Christian Brauner <christian.brauner@ubuntu.com> | 2019-10-01 15:45:17 +0200 |
| commit | dff3a85feceade213daf153556fd32a3b0a73c63 (patch) | |
| tree | e532439d4ce82a284eeffc133e90ff18a6fc895f /kernel/smpboot.c | |
| parent | f14c234b4bc5184fd40d9a47830e5b32c3b36d49 (diff) | |
| download | linux-dff3a85feceade213daf153556fd32a3b0a73c63.tar.gz | |
sched_setattr: switch to copy_struct_from_user()
Switch sched_setattr() syscall from it's own copying struct sched_attr
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. Ideally we could also
unify sched_getattr(2)-style syscalls as well, but unfortunately the
correct semantics for such syscalls are much less clear (see [1] for
more detail). In future we could come up with a more sane idea for how
the syscall interface should look.
[1]: commit 1251201c0d34 ("sched/core: Fix uclamp ABI bug, clean up and
robustify sched_read_attr() ABI logic and code")
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/20191001011055.19283-4-cyphar@cyphar.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Diffstat (limited to 'kernel/smpboot.c')
0 files changed, 0 insertions, 0 deletions