CVE-2025-38085 — Race Condition in Linux
Severity
4.7MEDIUMNVD
OSV5.6OSV3.2
EPSS
0.0%
top 91.04%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 28
Latest updateMar 25
Description
In the Linux kernel, the following vulnerability has been resolved:
mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race
huge_pmd_unshare() drops a reference on a page table that may have
previously been shared across processes, potentially turning it into a
normal page table used in another process in which unrelated VMAs can
afterwards be installed.
If this happens in the middle of a concurrent gup_fast(), gup_fast() could
end up walking the page tables of another process. While I don't see …
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.0 | Impact: 3.6
Affected Packages4 packages
▶CVEListV5linux/linux39dde65c9940c97fcd178a3d2b1c57ed8b7b68aa — 952596b08c74e8fe9e2883d1dc8a8f54a37384ec+7
Also affects: Debian Linux 11.0