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Advisory details: ubuntu_osv / UBUNTU-CVE-2025-39912
Advisory ID ubuntu_osv/UBUNTU-CVE-2025-39912
Aliases CVE-2025-39912
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3.1 5.5 https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-39912.json
ubuntu-priority medium https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-39912.json
Reference id Reference type URL
https://git.kernel.org/linus/992203a1fba51b025c60ec0c8b0d9223343dea95
https://ubuntu.com/security/CVE-2025-39912
https://www.cve.org/CVERecord?id=CVE-2025-39912
57c1bb02b4fc8eec6eb01736e7fad26dffacf18c Other https://git.kernel.org/stable/c/57c1bb02b4fc8eec6eb01736e7fad26dffacf18c
992203a1fba51b025c60ec0c8b0d9223343dea95 Other https://git.kernel.org/stable/c/992203a1fba51b025c60ec0c8b0d9223343dea95
c250be1d75bf80dc5ab46f0b434b746c1868a1ea Other https://git.kernel.org/stable/c/c250be1d75bf80dc5ab46f0b434b746c1868a1ea
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-39912.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.