Vulnerability · Published Sep 7, 2025 · Assigned by Linux
CVE-2025-39730NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()
High 7.8
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 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.2%top 90.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() The function needs to check the minimal filehandle length before it can access the embedded filehandle.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bpftool | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:10 | kernel-abi-stablelists | 6.12.0-124.13.1.el10_1 | ALSA-2025:21931 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-core | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-debug | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-devel | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:10 | kernel-doc | 6.12.0-124.13.1.el10_1 | ALSA-2025:21931 |
| AlmaLinux:8 | kernel-doc | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-headers | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-modules | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-rt | 4.18.0-553.78.1.rt7.419.el8_10 | ALSA-2025:17398 |
| AlmaLinux:8 | kernel-rt-core | 4.18.0-553.78.1.rt7.419.el8_10 | ALSA-2025:17398 |
| AlmaLinux:8 | kernel-rt-debug | 4.18.0-553.78.1.rt7.419.el8_10 | ALSA-2025:17398 |
| AlmaLinux:8 | kernel-rt-debug-core | 4.18.0-553.78.1.rt7.419.el8_10 | ALSA-2025:17398 |
| AlmaLinux:8 | kernel-rt-debug-devel | 4.18.0-553.78.1.rt7.419.el8_10 | ALSA-2025:17398 |
| AlmaLinux:8 | kernel-rt-debug-modules | 4.18.0-553.78.1.rt7.419.el8_10 | ALSA-2025:17398 |
| AlmaLinux:8 | kernel-rt-debug-modules-extra | 4.18.0-553.78.1.rt7.419.el8_10 | ALSA-2025:17398 |
| AlmaLinux:8 | kernel-rt-devel | 4.18.0-553.78.1.rt7.419.el8_10 | ALSA-2025:17398 |
| AlmaLinux:8 | kernel-rt-modules | 4.18.0-553.78.1.rt7.419.el8_10 | ALSA-2025:17398 |
| AlmaLinux:8 | kernel-rt-modules-extra | 4.18.0-553.78.1.rt7.419.el8_10 | ALSA-2025:17398 |
| AlmaLinux:8 | kernel-tools | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | perf | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| AlmaLinux:8 | python3-perf | 4.18.0-553.78.1.el8_10 | ALSA-2025:17397 |
| Debian:12 | linux | 6.1.148-1 | DEBIAN-CVE-2025-39730 |
| Debian:13 | linux | 6.12.43-1 | DEBIAN-CVE-2025-39730 |
| Debian:14 | linux | 6.16.3-1 | DEBIAN-CVE-2025-39730 |
| Rocky Linux:10 | kernel | 0:6.12.0-55.41.1.el10_0 | RLSA-2025:19106 |
| Rocky Linux:10 | kernel | 0:6.12.0-124.13.1.el10_1 | RLSA-2025:21931 |
| Rocky Linux:9 | kernel | 0:5.14.0-570.58.1.el9_6 | RLSA-2025:19105 |
| Ubuntu:22.04:LTS | linux | 5.15.0-163.173 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux | 6.8.0-100.100 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1097.104 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1046.49 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-aws-6.14 | 6.14.0-1017.17~24.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1046.49~22.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1101.110 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1046.52 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-azure-6.14 | 6.14.0-1017.17~24.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1051.57~22.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1102.111.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-azure-fde | 6.8.0-1046.53 | UBUNTU-CVE-2025-39730 |
| Ubuntu:25.10 | linux-azure-fde | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.14 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.8 | 6.8.0-1046.53~22.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-azure-nvidia | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-azure-nvidia-6.14 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1097.106 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1047.50 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-gcp-6.14 | 6.14.0-1020.21~24.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1047.50~22.04.2 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1093.99 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1043.48 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1080.88 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1030.33 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-100.100~22.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1091.94 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1044.44 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | 6.8.0-1044.44~22.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-intel | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1092.98 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1089.94 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-163.173 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-100.100.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | 6.8.0-100.100.1~22.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1092.93 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-nvidia | 6.8.0-1046.49 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 6.8.0-1046.49~22.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 6.8.0-1046.49.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1049.49 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra | 6.8.0-1020.20 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1038.38 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-oem-6.11 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-oem-6.14 | 6.14.0-1016.16 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1094.100 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1043.44 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-oracle-6.14 | 6.14.0-1017.17~24.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1043.44~22.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1091.94 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1047.51 | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-riscv-6.14 | 6.14.0-36.36.1~24.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-riscv-6.8 | 6.8.0-100.100~22.04.1 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2025-39730 |
| Ubuntu:24.04:LTS | linux-xilinx | 6.8.0-1023.24 | UBUNTU-CVE-2025-39730 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1061.65 | UBUNTU-CVE-2025-39730 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 20fa19027286983ab2734b5910c4a687436e0c31 – before 7f8eca87fef7519e9c41f3258f25ebc2752247ee20fa19027286983ab2734b5910c4a687436e0c31 – before cb09afa0948d96b1e385d609ed044bb1aa04353620fa19027286983ab2734b5910c4a687436e0c31 – before 3570ef5c31314c13274c935a20b91768ab5bf41220fa19027286983ab2734b5910c4a687436e0c31 – before 763810bb883cb4de412a72f338d80947d97df67b20fa19027286983ab2734b5910c4a687436e0c31 – before 12ad3def2e5e0b120e3d0cb6ce8b7b796819ad4020fa19027286983ab2734b5910c4a687436e0c31 – before 2ad40b7992aa26bc631afc1a995b0e3ddc30de3f20fa19027286983ab2734b5910c4a687436e0c31 – before b7f7866932466332a2528fda099000b03530348520fa19027286983ab2734b5910c4a687436e0c31 – before 7dd36f7477d1e03a1fcf8d13531ca326c4fb599f |
| Linux | Linux | 4.13 |
References
- https://git.kernel.org/stable/c/7f8eca87fef7519e9c41f3258f25ebc2752247ee
- https://git.kernel.org/stable/c/cb09afa0948d96b1e385d609ed044bb1aa043536
- https://git.kernel.org/stable/c/3570ef5c31314c13274c935a20b91768ab5bf412
- https://git.kernel.org/stable/c/763810bb883cb4de412a72f338d80947d97df67b
- https://git.kernel.org/stable/c/12ad3def2e5e0b120e3d0cb6ce8b7b796819ad40
- https://git.kernel.org/stable/c/2ad40b7992aa26bc631afc1a995b0e3ddc30de3f
- https://git.kernel.org/stable/c/b7f7866932466332a2528fda099000b035303485
- https://git.kernel.org/stable/c/7dd36f7477d1e03a1fcf8d13531ca326c4fb599f
- https://git.kernel.org/stable/c/ef93a685e01a281b5e2a25ce4e3428cf9371a205
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html