Pumpkin Chang

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** The Linux kernel has a flaw within the io uring/kbuf subsystem. Specifically, the `IORING REGISTER PBUF RING` function can reuse an old `struct io buffer list` if it was created for a legacy selected buffer and has been emptied. This violates the requirement that most of the field should remain stable after publication. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.