Thread (6 messages) 6 messages, 2 authors, 2022-11-03

Re: [PATCH v2] ftrace: Fix use-after-free for dynamic ftrace_ops

From: Li Huafei <hidden>
Date: 2022-11-03 03:38:43
Also in: lkml


On 2022/11/3 11:24, Steven Rostedt wrote:
On Wed, 2 Nov 2022 23:23:34 -0400
Steven Rostedt [off-list ref] wrote:
quoted
I think you misunderstood me. What I was suggesting was to get rid of
the ftrace_enabled check. The DYNAMIC part is most definitely needed.

	if (!command) {
		if (ops->flags & FTRACE_OPS_FL_DYNAMIC)
			goto out;
		return 0;
	}

Nevermind, I forgot that the out is before the DYNAMIC check.

   ;-)
Yes. There we have the DYNAMIC check.
-- Steve

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