CVE-2025-39698

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> io_uring/futex: ensure io_futex_wait() cleans up properly on failure<br /> <br /> The io_futex_data is allocated upfront and assigned to the io_kiocb<br /> async_data field, but the request isn&amp;#39;t marked with REQ_F_ASYNC_DATA<br /> at that point. Those two should always go together, as the flag tells<br /> io_uring whether the field is valid or not.<br /> <br /> Additionally, on failure cleanup, the futex handler frees the data but<br /> does not clear -&gt;async_data. Clear the data and the flag in the error<br /> path as well.<br /> <br /> Thanks to Trend Micro Zero Day Initiative and particularly ReDress for<br /> reporting this.