CVE-2022-48853

A vulnerability was found in the Linux kernel's swiotlb component, where an information leak occurs during DMA_FROM_DEVICE operations. This issue arises when a TEST UNIT READY command is issued, causing a bounce buffer to retain data from previous I/O operations instead of remaining zeroed. Consequently, when the buffer is copied back to user space, it may contain unintended data, leading to potential security implications.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.