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Vulnerability · Published Sep 11, 2026 · Assigned by Linux

CVE-2026-89680nfsd: fix nfsd_file leak on inter-server COPY setup failure

High 7.5

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 55% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.7%top 45.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-89680
Debian:13linux6.12.111-1DEBIAN-CVE-2026-89680
Debian:14linux7.2.6-1DEBIAN-CVE-2026-89680
Debian:12linux-6.126.12.111-1~deb12u1DEBIAN-CVE-2026-89680
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1038.42UBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-89680
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-89680
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-89680
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-89680

Affected products (as reported)

VendorProductVersions
Linux Linux ce0887ac96d35c7105090e166bb0807dc0a0e838 – before d15f76fddc5d0215db5f18851048376a1ea79bd6ce0887ac96d35c7105090e166bb0807dc0a0e838 – before eb22420e5bd6eb3afa1f840036bb08a7ac90db76ce0887ac96d35c7105090e166bb0807dc0a0e838 – before 94c28af6fd89cb204975e49b824f8ee521bb84e9ce0887ac96d35c7105090e166bb0807dc0a0e838 – before ab949252fdf102ae74329a0caa7995a849d0daface0887ac96d35c7105090e166bb0807dc0a0e838 – before 1a6a41b848455bf6ba2c9da2dfb0730e608ce7abce0887ac96d35c7105090e166bb0807dc0a0e838 – before 424d5c95108a4809b832cb0a312c61de4aec0078ce0887ac96d35c7105090e166bb0807dc0a0e838 – before 6ed8d6de7ec90c4ba84eb82673058f506e5777fdce0887ac96d35c7105090e166bb0807dc0a0e838 – before 88a76145451d703eedd867b5989bf73d17340399
Linux Linux 5.6

References