CVE-2026-89680nfsd: fix nfsd_file leak on inter-server COPY setup failure
- 7.5HighCVSS base score
- 0.74%Exploitation in 30 daysEPSS · top 45% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
Published
- 49 days later
· 49 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Received | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.74% · top 45% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected ce0887ac96d35c7105090e166bb0807dc0a0e838 – < d15f76fddc5d0215db5f18851048376a1ea79bd6
- affected ce0887ac96d35c7105090e166bb0807dc0a0e838 – < eb22420e5bd6eb3afa1f840036bb08a7ac90db76
- affected ce0887ac96d35c7105090e166bb0807dc0a0e838 – < 94c28af6fd89cb204975e49b824f8ee521bb84e9
- affected ce0887ac96d35c7105090e166bb0807dc0a0e838 – < ab949252fdf102ae74329a0caa7995a849d0dafa
- affected ce0887ac96d35c7105090e166bb0807dc0a0e838 – < 1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab
- affected ce0887ac96d35c7105090e166bb0807dc0a0e838 – < 424d5c95108a4809b832cb0a312c61de4aec0078
- affected ce0887ac96d35c7105090e166bb0807dc0a0e838 – < 6ed8d6de7ec90c4ba84eb82673058f506e5777fd
- affected ce0887ac96d35c7105090e166bb0807dc0a0e838 – < 88a76145451d703eedd867b5989bf73d17340399
- affected 5.6
- unaffected < 5.6
- unaffected 5.10.273 – ≤ 5.10.*
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.109 – ≤ 6.12.*
- unaffected 6.18.50 – ≤ 6.18.*
- unaffected 7.2.4 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/d15f76fddc5d0215db5f18851048376a1ea79bd6 (opens in a new tab)
- https://git.kernel.org/stable/c/eb22420e5bd6eb3afa1f840036bb08a7ac90db76 (opens in a new tab)
- https://git.kernel.org/stable/c/94c28af6fd89cb204975e49b824f8ee521bb84e9 (opens in a new tab)
- https://git.kernel.org/stable/c/ab949252fdf102ae74329a0caa7995a849d0dafa (opens in a new tab)
- https://git.kernel.org/stable/c/1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab (opens in a new tab)
- https://git.kernel.org/stable/c/424d5c95108a4809b832cb0a312c61de4aec0078 (opens in a new tab)
- https://git.kernel.org/stable/c/6ed8d6de7ec90c4ba84eb82673058f506e5777fd (opens in a new tab)
- https://git.kernel.org/stable/c/88a76145451d703eedd867b5989bf73d17340399 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-76592 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-89680)Record last updated .