resources: Enable user memory access temporarily for /process/create path reading

1 files changed, 6 insertions, 1 deletions

diff --git a/src/lib/resources.zig b/src/lib/resources.zig
index 5c19aa2..71cd73b 100644
--- a/src/lib/resources.zig
+++ b/src/lib/resources.zig
@@ -77,7 +77,10 @@ const processfs = struct {
     }
 
     fn doCreate(pid: u16, thread_id: usize, data: usize) !usize {
-        const path_c: [*:0]const u8 = @ptrFromInt(data);
+        paging.setUserMemoryAccess(true);
+        defer paging.setUserMemoryAccess(false);
+
+        const path_c: [*:0]const u8 = @ptrFromInt(data); // fixme: Kernel panic if null pointer
 
         const allocator = mem.page_allocator;
 
@@ -104,6 +107,8 @@ const processfs = struct {
             .proc = proc,
         };
 
+        paging.setUserMemoryAccess(false);
+
         defer proc.allowResume();
         while (try rd.readHooked(proc, ctx.buffer.items, .{
             .hookFn = loadExe,