Published
2025-09-07
·
Updated
2025-09-07
·
CVE-2025-39731
None
**Name of the Vulnerable Software and Affected Versions:**
Linux kernel versions prior to 6.16.0-rc5-xfstests-ufs-g40f92e79b0aa #9
**Description:**
A flaw exists in the Linux kernel where `vm unmap ram()` may be called from an invalid context within the F2FS filesystem. This issue occurs when testing F2FS with xfstests using UFS backed virtual disks, potentially leading to kernel instability. The problem arises from an incorrect check within `f2fs read end io()`, which fails to properly verify interrupt status before unmapping pages asynchronously in an interrupt handler.
**Recommendations:**
Update the Linux kernel to version 6.16.0-rc5-xfstests-ufs-g40f92e79b0aa #9 or a later version that includes the fix.