In the Linux kernel, the following vulnerability has been resolved:

nfs/localio: restore creds before releasing pageio data

Otherwise if the nfsd filecache code releases the nfsd_file
immediately, it can trigger the BUG_ON(cred == current->cred) in
__put_cred() when it puts the nfsd_file->nf_file->f-cred.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00022.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
b9f5dd57f4a52990963eeb1f1b58d00f717ece69 affected < 57c1bb02b4fc8eec6eb01736e7fad26dffacf18c
b9f5dd57f4a52990963eeb1f1b58d00f717ece69 affected < c250be1d75bf80dc5ab46f0b434b746c1868a1ea
b9f5dd57f4a52990963eeb1f1b58d00f717ece69 affected < 992203a1fba51b025c60ec0c8b0d9223343dea95
Linux Linux affected
Version Status Constraints
6.12 affected —
0 unaffected < 6.12
6.12.48 unaffected ≤ 6.12.*
6.16.8 unaffected ≤ 6.16.*
6.17 unaffected ≤ *

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:*

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/57c1bb02b4fc8eec6eb01736e7fad26dffacf18c cve-icon cve-icon
https://git.kernel.org/stable/c/992203a1fba51b025c60ec0c8b0d9223343dea95 cve-icon cve-icon
https://git.kernel.org/stable/c/c250be1d75bf80dc5ab46f0b434b746c1868a1ea cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025100110-CVE-2025-39912-13cf@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-39912 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-39912 cve-icon
History

Wed, 14 Jan 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 12 Dec 2025 18:30:00 +0000

Type Values Removed Values Added
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Thu, 02 Oct 2025 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Thu, 02 Oct 2025 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Wed, 01 Oct 2025 08:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: nfs/localio: restore creds before releasing pageio data Otherwise if the nfsd filecache code releases the nfsd_file immediately, it can trigger the BUG_ON(cred == current->cred) in __put_cred() when it puts the nfsd_file->nf_file->f-cred.
Title nfs/localio: restore creds before releasing pageio data
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-14T17:52:47.282Z

Reserved: 2025-04-16T07:20:57.147Z

Link: CVE-2025-39912

cve-icon Vulnrichment

Updated: 2026-01-14T17:42:45.398Z

cve-icon NVD

Status : Modified

Published: 2025-10-01T08:15:34.270

Modified: 2026-01-14T18:16:39.697

Link: CVE-2025-39912

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-01T00:00:00Z

Links: CVE-2025-39912 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-02T08:40:08Z

Weaknesses