Bug 2400591 (CVE-2025-39912) - CVE-2025-39912 kernel: nfs/localio: restore creds before releasing pageio data
Summary: CVE-2025-39912 kernel: nfs/localio: restore creds before releasing pageio data
Keywords:
Status: NEW
Alias: CVE-2025-39912
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-01 08:01 UTC by OSIDB Bzimport
Modified: 2025-10-02 10:22 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-10-01 08:01:14 UTC 
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.
Comment 1 Alexander B 2025-10-02 10:20:24 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100110-CVE-2025-39912-13cf@gregkh/T
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