In the Linux kernel, the following vulnerability has been resolved:
NFSD: fix leaked reference count of nfsd4_ssc_umount_item
The reference count of nfsd4_ssc_umount_item is not decremented on error conditions. This prevents the laundromat from unmounting the vfsmount of the source file.
This patch decrements the reference count of nfsd4_ssc_umount_item on error.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-headersUpgrade kernel-livepatch-5.15.156-102.160Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-tools-develUpgrade bpftoolUpgrade perf-debuginfoUpgrade kernel-toolsUpgrade python-perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade perfUpgrade bpftool-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernelUpgrade kernel-tools-develUpgrade python3-perfUpgrade bpftoolUpgrade kernel-develUpgrade kernel-libbpf-staticUpgrade kernel-libbpf-develUpgrade kernel-livepatch-6.1.19-30.43Upgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-debuginfoUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-libbpfUpgrade bpftool-debuginfo | Oct 16, 2025 | Sep 18, 2025 |
| Debian | — | Upgrade linux | Sep 22, 2025 | Sep 22, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernelUpgrade python3-perfUpgrade bpftoolUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade kernel-tools | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Sep 18, 2025 |
| Ubuntu | — | Upgrade linuxUpgrade linux-oracle-5.15Upgrade linux-lowlatencyUpgrade linux-aws-5.15Upgrade linux-awsUpgrade linux-nvidia-tegraUpgrade linux-gkeUpgrade linux-nvidia-tegra-5.15Upgrade linux-fipsUpgrade linux-ibm-5.15Upgrade linux-bluefieldUpgrade linux-riscv-5.15Upgrade linux-gcpUpgrade linux-nvidia-tegra-igxUpgrade linux-lowlatency-hwe-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-hwe-5.15Upgrade linux-intel-iotg-5.15Upgrade linux-oracleUpgrade linux-xilinx-zynqmpUpgrade linux-gcp-5.15Upgrade linux-intel-iotgUpgrade linux-nvidiaUpgrade linux-raspiUpgrade linux-ibmUpgrade linux-gcp-fipsUpgrade linux-azure-5.15Upgrade linux-realtimeUpgrade linux-azure-fipsUpgrade linux-kvmUpgrade linux-aws-fipsUpgrade linux-gkeopUpgrade linux-azure | Sep 26, 2025 | Sep 18, 2025 |
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