diff options
| -rw-r--r-- | Kernel/Syscalls/ioctl.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Kernel/Syscalls/ioctl.cpp b/Kernel/Syscalls/ioctl.cpp index b5b078186e..0f2a675dfd 100644 --- a/Kernel/Syscalls/ioctl.cpp +++ b/Kernel/Syscalls/ioctl.cpp @@ -4,6 +4,7 @@ * SPDX-License-Identifier: BSD-2-Clause */ +#include <AK/Userspace.h> #include <Kernel/FileSystem/OpenFileDescription.h> #include <Kernel/Process.h> #include <LibC/sys/ioctl_numbers.h> @@ -15,7 +16,9 @@ KResultOr<FlatPtr> Process::sys$ioctl(int fd, unsigned request, FlatPtr arg) VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this) auto description = TRY(fds().open_file_description(fd)); if (request == FIONBIO) { - description->set_blocking(arg == 0); + int non_blocking; + TRY(copy_from_user(&non_blocking, Userspace<const int*>(arg))); + description->set_blocking(non_blocking == 0); return KSuccess; } return description->file().ioctl(*description, request, arg); |