Re: [PATCH v3] coresight: ETR: Fix ETR buffer use-after-free issue

On Tue, 21 Oct 2025 16:45:25 +0800, Xiaoqi Zhuang wrote:

When ETR is enabled as CS_MODE_SYSFS, if the buffer size is changed and enabled again, currently sysfs_buf will point to the newly allocated memory(buf_new) and free the old memory(buf_old). But the etr_buf that is being used by the ETR remains pointed to buf_old, not updated to buf_new. In this case, it will result in a memory use-after-free issue.

[...]

Applied, thanks!

[1/1] coresight: ETR: Fix ETR buffer use-after-free issue https://git.kernel.org/coresight/c/35501ac3c7d4

Best regards,