CVE-2025-38686 (GCVE-0-2025-38686)
Vulnerability from cvelistv5
Published
2025-09-04 15:32
Modified
2025-09-29 05:55
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix a crash in UFFDIO_MOVE when PMD is a migration entry When UFFDIO_MOVE encounters a migration PMD entry, it proceeds with obtaining a folio and accessing it even though the entry is swp_entry_t. Add the missing check and let split_huge_pmd() handle migration entries. While at it also remove unnecessary folio check. [surenb@google.com: remove extra folio check, per David]
References
Impacted products
Vendor Product Version
Linux Linux Version: adef440691bab824e39c1b17382322d195e1fab0
Version: adef440691bab824e39c1b17382322d195e1fab0
Version: adef440691bab824e39c1b17382322d195e1fab0
Version: adef440691bab824e39c1b17382322d195e1fab0
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    "dateReserved": "2025-04-16T04:51:24.032Z",
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