High severity7.5NVD Advisory· Published Sep 11, 2026· Updated Oct 21, 2026
CVE-2026-89680
CVE-2026-89680
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.
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Affected products
3- osv-coords2 versions
>= 5.6.0, < 6.6.160+ 1 more
- (no CPE)range: >= 5.6.0, < 6.6.160
- (no CPE)range: < 7.2.6-1.1
Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/1a6a41b848455bf6ba2c9da2dfb0730e608ce7abnvd
- git.kernel.org/stable/c/424d5c95108a4809b832cb0a312c61de4aec0078nvd
- git.kernel.org/stable/c/6ed8d6de7ec90c4ba84eb82673058f506e5777fdnvd
- git.kernel.org/stable/c/88a76145451d703eedd867b5989bf73d17340399nvd
- git.kernel.org/stable/c/ab949252fdf102ae74329a0caa7995a849d0dafanvd
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