CVE-2026-89680

Summary

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

VendorProductVersion RangeStatus
LinuxLinuxce0887ac96d35c7105090e166bb0807dc0a0e838 < 1a6a41b848455bf6ba2c9da2dfb0730e608ce7abaffected
LinuxLinuxce0887ac96d35c7105090e166bb0807dc0a0e838 < 424d5c95108a4809b832cb0a312c61de4aec0078affected
LinuxLinuxce0887ac96d35c7105090e166bb0807dc0a0e838 < 6ed8d6de7ec90c4ba84eb82673058f506e5777fdaffected
LinuxLinuxce0887ac96d35c7105090e166bb0807dc0a0e838 < 88a76145451d703eedd867b5989bf73d17340399affected
LinuxLinux5.6affected
LinuxLinux0 < 5.6unaffected
LinuxLinux6.12.109 <= 6.12.*unaffected
LinuxLinux6.18.50 <= 6.18.*unaffected
LinuxLinux7.2.4 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References