Merge "proc: prevent accessing /proc/<PID>/environ until it's ready" (dbd3ba23) · Commits · e / devices / android_kernel_xiaomi_markw

fs/proc/base.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -752,7 +752,8 @@ static ssize_t environ_read(struct file file, char __user buf,
		int ret = 0;
		struct mm_struct *mm = file->private_data;

		if (!mm)
		/* Ensure the process spawned far enough to have an environment. */
		if (!mm \|\| !mm->env_end)
		return 0;

		page = (char *)__get_free_page(GFP_TEMPORARY);