CVE-2026-89680

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.

CVSS 3.1

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

EPSS

0.7% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-25)

Published

2026-09-11

Modified

2026-10-21

Record from

the NVD, synced 2026-10-22

References

• https://git.kernel.org/stable/c/1a6a41b848455bf6ba2c9da2dfb0730e608ce7ab
• https://git.kernel.org/stable/c/424d5c95108a4809b832cb0a312c61de4aec0078
• https://git.kernel.org/stable/c/6ed8d6de7ec90c4ba84eb82673058f506e5777fd
• https://git.kernel.org/stable/c/88a76145451d703eedd867b5989bf73d17340399
• https://git.kernel.org/stable/c/ab949252fdf102ae74329a0caa7995a849d0dafa

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