Skip to main content
VulnerabilityPublished Updated

CVE-2025-38047: Linux kernel · x86/fred: Fix system hang during S4 resume with FRED enabled

Source GCVE Database

0
Compare
Authoritative record:CVE-2025-38047· Medium

Not known to be exploited · CVSS 5.5 Medium · fixed in e7090fe75a2826363c71ad1fb4e95e58141478df : update Linux kernel when convenient.

Data as of 13 Nov 2026, 18:52 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
Patch
Available – fixed in e7090fe75a2826363c71ad1fb4e95e58141478df, e5f1e8af9c9e151ecd665f6d2e36fb25fec3b110, c42f740a07eea4807e98d2d8febc549c957a7b49
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Jun 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade Linux kernel to e7090fe75a2826363c71ad1fb4e95e58141478df, e5f1e8af9c9e151ecd665f6d2e36fb25fec3b110 or c42f740a07eea4807e98d2d8febc549c957a7b49.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ ff45746fbf005f96e42bea466698e3fdbf926013, < e7090fe75a2826363c71ad1fb4e95e58141478df
Fixed in
  • e7090fe75a2826363c71ad1fb4e95e58141478df
LinuxLinuxAffected
  • ≥ ff45746fbf005f96e42bea466698e3fdbf926013, < e5f1e8af9c9e151ecd665f6d2e36fb25fec3b110
Fixed in
  • e5f1e8af9c9e151ecd665f6d2e36fb25fec3b110
LinuxLinuxAffected
  • ≥ ff45746fbf005f96e42bea466698e3fdbf926013, < c42f740a07eea4807e98d2d8febc549c957a7b49
Fixed in
  • c42f740a07eea4807e98d2d8febc549c957a7b49
LinuxLinuxAffected
  • =6.9
Fixed in–

AI-suggested

A fix for this vulnerability is available in the Linux kernel. Users should apply the official kernel update that includes the patch for this issue. Since this is a kernel-level fix, upgrading to the patched kernel version is the recommended mitigation.

Description

CVE-2025-38047 is a vulnerability in the Linux kernel's x86 FRED feature that causes a system hang during resume from S4 (hibernation) when FRED is enabled. The issue arises because the image kernel resumes with FRED MSRs (Model-Specific Registers) set by the restore kernel, which may differ from the expected values. This mismatch can lead to a system hang. The fix ensures the image kernel recomputes and sets the FRED MSRs correctly upon resume.

References

Community reviews

Loading reviews…