diff --git a/kernel-src/sys/syscalls/pread.c b/kernel-src/sys/syscalls/pread.c
index 09964e8c..b48ec5e3 100644
--- a/kernel-src/sys/syscalls/pread.c
+++ b/kernel-src/sys/syscalls/pread.c
@@ -10,6 +10,11 @@ syscallret_t syscall_pread(context_t *context, int fd, void *buffer, size_t size
 		.ret = -1
 	};
 
+	if (!IS_USER_ADDRESS(buffer)) {
+		ret.errno = EFAULT;
+		return ret;
+	}
+
 	file_t *file = fd_get(fd);
 
 	if (file == NULL || (file->flags & FILE_READ) == 0) {
diff --git a/kernel-src/sys/syscalls/pwrite.c b/kernel-src/sys/syscalls/pwrite.c
index 6604ef3a..7c120f84 100644
--- a/kernel-src/sys/syscalls/pwrite.c
+++ b/kernel-src/sys/syscalls/pwrite.c
@@ -8,6 +8,11 @@ syscallret_t syscall_pwrite(context_t *context, int fd, void *buffer, size_t siz
 		.ret = -1
 	};
 
+	if (!IS_USER_ADDRESS(buffer)) {
+		ret.errno = EFAULT;
+		return ret;
+	}
+
 	file_t *file = fd_get(fd);
 
 	if (file == NULL || (file->flags & FILE_WRITE) == 0) {