CVE-2023-54239

In the Linux kernel, the following vulnerability has been resolved: iommufd: Check for uptr overflow syzkaller found that setting up a map with a user VA that wraps past zero can trigger WARNONs, particularly from pinuserpages weirdly returning 0 due to invalid arguments. Prevent creating a pages...

CVE-2023-54239

CVE-2023-54239 concerns the Linux kernel iommufd component. Public docs describe a fixed issue where a user virtual address (uptr) could overflow when mapping pages, triggering WARN_ONs (notably from pin_user_pages) due to invalid arguments. The fix prevents creating a pages object with an uptr a...