CVE-2025-38047: Linux kernel · x86/fred: Fix system hang during S4 resume with FRED enabled
Source GCVE Database
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
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:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| 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
- nvd.nist.gov/vuln/detail/CVE-2025-38047 (opens in a new tab)
- git.kernel.org/stable/c/c42f740a07eea4807e98d2d8febc549c957a7b49 (opens in a new tab)
- git.kernel.org/stable/c/e5f1e8af9c9e151ecd665f6d2e36fb25fec3b110 (opens in a new tab)
- git.kernel.org/stable/c/e7090fe75a2826363c71ad1fb4e95e58141478df (opens in a new tab)