PT-2025-18460 · Linux+2 · Linux Kernel+2
Published
2025-05-01
·
Updated
2025-11-06
·
CVE-2025-37779
CVSS v3.1
5.5
Medium
| Vector | AV: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 (affected versions not specified)
Description
A vulnerability in the Linux kernel has been resolved, related to the
lib/iov iter component. The issue is a folio use-after-free (UAF) problem that occurs when testing EROFS file-backed mount over v9fs on qemu. The root cause is that pages in bvec are coalesced across a folio boundary, and the refcount of all non-slab folios should be increased to ensure p9 releas pages can put them correctly. This results in a bad page state, as reported by the page sanity check.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Double Free
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Ubuntu