CVE-2023-53236

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.3.0-rc2-eeac8ede1755+

Description A flaw exists in the Linux kernel's iommufd subsystem related to page frame number (pfn) list corruption during batch carry operations. Specifically, if batch->end is 0, setting npfns[0] before computing the new pfn value can lead to page accounting corruption. This can manifest as various kinds of page meta-data corruption failures, as observed in warnings during CPU operation.

Recommendations Update to a version newer than 6.3.0-rc2-eeac8ede1755+ to address this issue.