PT-2025-37233
CVE-2025-39775
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Published
2025-08-18
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Updated
2026-10-17
Description by
CVSS 3.1
5.5
MediumMetricsAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions:
Linux kernel versions prior to 6.17.0-rc1-syzkaller-00004-g53e760d89498
Description:
The Linux kernel contained a flaw in the mm/mremap module related to handling userfaultd (uffd) registered on a Virtual Memory Area (VMA) that spans at least one Page Medium Descriptor (PMD) during a
mremap() operation. Specifically, a warning could be triggered when recovering from a failed page table move due to a page table allocation error. The issue stemmed from a lack of recursion during the recovery move, which occurred during the original page table move.Recommendations:
Update the Linux kernel to version 6.17.0-rc1-syzkaller-00004-g53e760d89498 or a later version to resolve this issue.
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