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Back to active CVEs
High · CVSS 7.5CVE-2026-89680

nfsd: fix nfsd_file leak on inter-server COPY setup failureCVE-2026-89680

Answer in brief

CVE-2026-89680 records a High severity (CVSS 7.5) 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), 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 Oct 21, 2026Source checked Oct 27, 2026First seen by HOL Sep 11, 2026Material review Oct 21, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.5. 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=ce0887ac96d35c7105090e166bb0807dc0a0e838 <1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab || >=ce0887ac96d35c7105090e166bb0807dc0a0e838 <424d5c95108a4809b832cb0a312c61de4aec0078 || >=ce0887ac96d35c7105090e166bb0807dc0a0e838 <6ed8d6de7ec90c4ba84eb82673058f506e5777fd || >=ce0887ac96d35c7105090e166bb0807dc0a0e838 <88a76145451d703eedd867b5989bf73d173403991a6a41b848455bf6ba2c9da2dfb0730e608ce7ab, 424d5c95108a4809b832cb0a312c61de4aec0078, 6ed8d6de7ec90c4ba84eb82673058f506e5777fd, 88a76145451d703eedd867b5989bf73d17340399
Linux/Linuxgeneric5.6Not reported
Linux/Linuxgeneric>=ce0887ac96d35c7105090e166bb0807dc0a0e838 <ab949252fdf102ae74329a0caa7995a849d0dafa || >=ce0887ac96d35c7105090e166bb0807dc0a0e838 <1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab || >=ce0887ac96d35c7105090e166bb0807dc0a0e838 <424d5c95108a4809b832cb0a312c61de4aec0078 || >=ce0887ac96d35c7105090e166bb0807dc0a0e838 <6ed8d6de7ec90c4ba84eb82673058f506e5777fd || >=ce0887ac96d35c7105090e166bb0807dc0a0e838 <88a76145451d703eedd867b5989bf73d17340399ab949252fdf102ae74329a0caa7995a849d0dafa, 1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab, 424d5c95108a4809b832cb0a312c61de4aec0078, 6ed8d6de7ec90c4ba84eb82673058f506e5777fd, 88a76145451d703eedd867b5989bf73d17340399

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab; Linux/Linux to ab949252fdf102ae74329a0caa7995a849d0dafa if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 11, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 11, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
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.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 27, 2026
References
5 linked sources
Open source record