Threats tagged 'ghsa-83mm-95m8-59x2'

CVE-2025-38256 is a medium severity vulnerability in the Linux kernel's io_uring resource management related to incorrect folio unpinning. The issue causes a kernel BUG triggered by unmapping failures due to unpinning the wrong page of a folio, leading to internal kernel errors and potential system instability. The flaw arises because io_uring attempts to unpin the head page of a folio after pinning the tail page, which is incorrect and triggers debug warnings. The fix involves using the correct unpinning function to avoid this inconsistency.