CVE-2026-89680

HIGH
MEDIUM Priority: 0.06 BB Relevance: 75/100
Published: 2026-09-11 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

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.

Affected Software (9)

VendorProductVersion
Linux Linux ce0887ac96d35c7105090e166bb0807dc0a0e838 < d15f76fddc5d0215db5f18851048376a1ea79bd6
Linux Linux ce0887ac96d35c7105090e166bb0807dc0a0e838 < eb22420e5bd6eb3afa1f840036bb08a7ac90db76
Linux Linux ce0887ac96d35c7105090e166bb0807dc0a0e838 < 94c28af6fd89cb204975e49b824f8ee521bb84e9
Linux Linux ce0887ac96d35c7105090e166bb0807dc0a0e838 < ab949252fdf102ae74329a0caa7995a849d0dafa
Linux Linux ce0887ac96d35c7105090e166bb0807dc0a0e838 < 1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab
Linux Linux ce0887ac96d35c7105090e166bb0807dc0a0e838 < 424d5c95108a4809b832cb0a312c61de4aec0078
Linux Linux ce0887ac96d35c7105090e166bb0807dc0a0e838 < 6ed8d6de7ec90c4ba84eb82673058f506e5777fd
Linux Linux ce0887ac96d35c7105090e166bb0807dc0a0e838 < 88a76145451d703eedd867b5989bf73d17340399
Linux Linux 5.6

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.74%
Raw Score 0.007400
Percentile 54.6%
Date 2026-10-31

EPSS Trend

2026-10-31
0.00740
2026-10-30
0.00651
2026-10-29
0.00651

Intelligence Sources

mitre ref →
nvd ref →