Description

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. [[email protected]: remove extra folio check, per David]

INFO

Published Date :

2025-09-04T15:32:40.771Z

Last Modified :

2025-09-29T05:55:58.953Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2025-38686 vulnerability.

Vendors Products
Linux
  • Linux Kernel
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-38686.

URL Resource
https://git.kernel.org/stable/c/1202abad7a7ccd28c426d2844771a387b07629a4 cve-icon cve-icon
https://git.kernel.org/stable/c/7f1101a0a181243ad587ececdffc4845f035549f cve-icon cve-icon
https://git.kernel.org/stable/c/aba6faec0103ed8f169be8dce2ead41fcb689446 cve-icon cve-icon
https://git.kernel.org/stable/c/bb81c18dbd42650c844e160cafa7cbb20243a96a cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025090447-CVE-2025-38686-281b@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-38686 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-38686 cve-icon
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