patch.c: Change ulp cache file owner to target task.

Just like issue [0] shows [0] #14 Signed-off-by: Rong Tao <[email protected]>
Rtoax · May 8, 2024 · 82297ea · 82297ea
1 parent 857f220
commit 82297ea
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/src/patch/patch.c b/src/patch/patch.c
@@ -910,6 +910,16 @@ int init_patch(struct task_struct *task, const char *obj_file)
 		goto err;
 	}
 
+	/**
+	 * Target task will open/mmap the object ulp file, thus, it must has
+	 * permission to open and modify the object file.
+	 */
+	err = chown(obj_to, task->status.uid, task->status.gid);
+	if (err) {
+		lerror("chown %s failed.\n", obj_to);
+		goto err;
+	}
+
 	/**
 	 * Create and mmap a temp file into target task, this temp file is under
 	 * ULP_PROC_ROOT_DIR/PID/TASK_PROC_MAP_FILES directory, it's named by