Jijie Shao

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** The issue is related to an out-of-bounds access in the Linux kernel HNS3. The TQP BAR space is divided into two segments, but the `hclge fetch pf reg` function does not distinguish between these segments when reading the TQP space information. This can cause access bar space overwriting when the number of TQPs is greater than 1024. The problem has been considered during the initialization of `tqp.io base`, and `tqp.io base` is directly used when the queue is read in `hclge fetch pf reg`. An error message is generated when the kernel is unable to handle a paging request at a virtual address. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.