tree 7e6407dae5d248995ecbc56b808f49d8b687fd70
parent dff3a85feceade213daf153556fd32a3b0a73c63
author Aleksa Sarai <cyphar@cyphar.com> 1569892255 +1000
committer Christian Brauner <christian.brauner@ubuntu.com> 1569937522 +0200

perf_event_open: switch to copy_struct_from_user()

Switch perf_event_open() syscall from it's own copying
struct perf_event_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.

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/20191001011055.19283-5-cyphar@cyphar.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>