CVE-2026-89680

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

State: Published
Severity: 7.5 High
Published: Sep 11, 2026
Updated: Oct 30, 2026
Reserved: Sep 11, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	ce0887ac96d35c7105090e166bb0807dc0a0e838 to before d15f76fddc5d0215db5f18851048376a1ea79bd6Affected ce0887ac96d35c7105090e166bb0807dc0a0e838 to before eb22420e5bd6eb3afa1f840036bb08a7ac90db76Affected ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 94c28af6fd89cb204975e49b824f8ee521bb84e9Affected ce0887ac96d35c7105090e166bb0807dc0a0e838 to before ab949252fdf102ae74329a0caa7995a849d0dafaAffected ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 1a6a41b848455bf6ba2c9da2dfb0730e608ce7abAffected ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 424d5c95108a4809b832cb0a312c61de4aec0078Affected ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 6ed8d6de7ec90c4ba84eb82673058f506e5777fdAffected ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 88a76145451d703eedd867b5989bf73d17340399Affected
LinuxLinux	5.6Affected before 5.6Not affected 5.10.273 through 5.10.Not affected 5.15.224 through 5.15.Not affected 6.1.191 through 6.1.Not affected 6.6.160 through 6.6.Not affected 6.12.109 through 6.12.Not affected 6.18.50 through 6.18.Not affected 7.2.4 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

ce0887ac96d35c7105090e166bb0807dc0a0e838 to before d15f76fddc5d0215db5f18851048376a1ea79bd6Affected
ce0887ac96d35c7105090e166bb0807dc0a0e838 to before eb22420e5bd6eb3afa1f840036bb08a7ac90db76Affected
ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 94c28af6fd89cb204975e49b824f8ee521bb84e9Affected
ce0887ac96d35c7105090e166bb0807dc0a0e838 to before ab949252fdf102ae74329a0caa7995a849d0dafaAffected
ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 1a6a41b848455bf6ba2c9da2dfb0730e608ce7abAffected
ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 424d5c95108a4809b832cb0a312c61de4aec0078Affected
ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 6ed8d6de7ec90c4ba84eb82673058f506e5777fdAffected
ce0887ac96d35c7105090e166bb0807dc0a0e838 to before 88a76145451d703eedd867b5989bf73d17340399Affected

LinuxLinux

5.6Affected
before 5.6Not affected
5.10.273 through 5.10.*Not affected
5.15.224 through 5.15.*Not affected
6.1.191 through 6.1.*Not affected
6.6.160 through 6.6.*Not affected
6.12.109 through 6.12.*Not affected
6.18.50 through 6.18.*Not affected
7.2.4 through 7.2.*Not affected
7.3 and laterNot affected

References

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