nfsd: fix nfsd_file leak on inter-server COPY setup failure (CVE-2026-89680) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89680

nfsd: fix nfsd_file leak on inter-server COPY setup failure

Answer in brief

CVE-2026-89680 records a Unknown severity vulnerability in nfsd: fix nfsd_file leak on inter-server COPY setup failure. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 11, 2026Updated Sep 11, 2026Source checked Sep 11, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=ce0887ac96d35c7105090e166bb0807dc0a0e838 <1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab \|\| >=ce0887ac96d35c7105090e166bb0807dc0a0e838 <424d5c95108a4809b832cb0a312c61de4aec0078 \|\| >=ce0887ac96d35c7105090e166bb0807dc0a0e838 <6ed8d6de7ec90c4ba84eb82673058f506e5777fd \|\| >=ce0887ac96d35c7105090e166bb0807dc0a0e838 <88a76145451d703eedd867b5989bf73d17340399	1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab, 424d5c95108a4809b832cb0a312c61de4aec0078, 6ed8d6de7ec90c4ba84eb82673058f506e5777fd, 88a76145451d703eedd867b5989bf73d17340399
Linux/Linuxgeneric	5.6	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 11, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsd_file leak on inter-server COPY setup failure When nfsd4_setup_inter_ssc() fails, nfsd4_copy() returns nfserr_offload_denied directly, bypassing the out: label where release_copy_files() would drop the nf_dst reference taken by nfs4_preprocess_stateid_op(). Each failed inter-server COPY leaks one nfsd_file, pinning file/inode/dentry/vfsmount. Fix by setting status and jumping to out: instead of returning directly.

Quoted source text, attributed separately from HOL analysis.