Vulnerability · Published Sep 5, 2025 · Assigned by Linux
CVE-2025-39697NFS: Fix a race when updating an existing write
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 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 94.9% 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 a race when updating an existing write After nfs_lock_and_join_requests() tests for whether the request is still attached to the mapping, nothing prevents a call to nfs_inode_remove_request() from succeeding until we actually lock the page group. The reason is that whoever called nfs_inode_remove_request() doesn't necessarily have a lock on the page group head. So in order to avoid races, let's take the page group lock earlier in nfs_lock_and_join_requests(), and hold it across the removal of the request in nfs_inode_remove_request().
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bpftool | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-core | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-debug | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-devel | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-doc | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-headers | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-modules | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-rt | 4.18.0-553.85.1.rt7.426.el8_10 | ALSA-2025:21920 |
| AlmaLinux:8 | kernel-rt-core | 4.18.0-553.85.1.rt7.426.el8_10 | ALSA-2025:21920 |
| AlmaLinux:8 | kernel-rt-debug | 4.18.0-553.85.1.rt7.426.el8_10 | ALSA-2025:21920 |
| AlmaLinux:8 | kernel-rt-debug-core | 4.18.0-553.85.1.rt7.426.el8_10 | ALSA-2025:21920 |
| AlmaLinux:8 | kernel-rt-debug-devel | 4.18.0-553.85.1.rt7.426.el8_10 | ALSA-2025:21920 |
| AlmaLinux:8 | kernel-rt-debug-modules | 4.18.0-553.85.1.rt7.426.el8_10 | ALSA-2025:21920 |
| AlmaLinux:8 | kernel-rt-debug-modules-extra | 4.18.0-553.85.1.rt7.426.el8_10 | ALSA-2025:21920 |
| AlmaLinux:8 | kernel-rt-devel | 4.18.0-553.85.1.rt7.426.el8_10 | ALSA-2025:21920 |
| AlmaLinux:8 | kernel-rt-modules | 4.18.0-553.85.1.rt7.426.el8_10 | ALSA-2025:21920 |
| AlmaLinux:8 | kernel-rt-modules-extra | 4.18.0-553.85.1.rt7.426.el8_10 | ALSA-2025:21920 |
| AlmaLinux:8 | kernel-tools | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | perf | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| AlmaLinux:8 | python3-perf | 4.18.0-553.85.1.el8_10 | ALSA-2025:21917 |
| Debian:12 | linux | 6.1.153-1 | DEBIAN-CVE-2025-39697 |
| Debian:13 | linux | 6.12.48-1 | DEBIAN-CVE-2025-39697 |
| Debian:13 | linux | 6.12.48-1 | DSA-6008-1 |
| Debian:14 | linux | 6.16.5-1 | DEBIAN-CVE-2025-39697 |
| Rocky Linux:10 | kernel | 0:6.12.0-55.41.1.el10_0 | RLSA-2025:19106 |
| Rocky Linux:8 | kernel | 0:4.18.0-553.85.1.el8_10 | RLSA-2025:21917 |
| Rocky Linux:8 | kernel-rt | 0:4.18.0-553.85.1.rt7.426.el8_10 | RLSA-2025:21920 |
| Ubuntu:22.04:LTS | linux | 5.15.0-163.173 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux | 6.8.0-106.106 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux | 6.8.0-106.106 | USN-8095-1 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1097.104 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1050.53 | USN-8095-1 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1050.53 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-aws-6.14 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1050.53~22.04.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1050.53~22.04.1 | USN-8095-4 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1101.110 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1051.57 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1051.57 | USN-8125-1 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-azure-6.14 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1051.57~22.04.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1102.111.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-azure-fde | 6.8.0-1058.65 | UBUNTU-CVE-2025-39697 |
| Ubuntu:25.10 | linux-azure-fde | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.14 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.8 | 6.8.0-1058.65~22.04.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-azure-nvidia | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-azure-nvidia-6.14 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1097.106 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1052.55 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1052.55 | USN-8095-1 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-gcp-6.14 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1052.55~22.04.1 | USN-8095-1 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1052.55~22.04.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1093.99 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1048.53 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1048.53 | USN-8095-1 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1080.88 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1035.38 | USN-8095-1 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1035.38 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-hwe-6.14 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-106.106~22.04.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-106.106~22.04.1 | USN-8095-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1091.94 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1049.49 | USN-8095-1 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1049.49 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | 6.8.0-1049.49~22.04.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | 6.8.0-1049.49~22.04.1 | USN-8095-1 |
| Ubuntu:24.04:LTS | linux-intel | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1092.98 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1089.94 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-163.173 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-106.106.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-106.106.1 | USN-8095-1 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | 6.8.0-106.106.1~22.04.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | 6.8.0-106.106.1~22.04.1 | USN-8095-1 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1092.93 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-nvidia | 6.8.0-1049.52 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-nvidia | 6.8.0-1049.52 | USN-8100-1 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 6.8.0-1049.52~22.04.1 | USN-8100-1 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 6.8.0-1049.52~22.04.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 6.8.0-1049.52.1 | USN-8100-1 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 6.8.0-1049.52.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1049.49 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra | 6.8.0-1020.20 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1038.38 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-oem-6.11 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-oem-6.14 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1094.100 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1047.48 | USN-8095-1 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1047.48 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-oracle-6.14 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1047.48~22.04.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1047.48~22.04.1 | USN-8095-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1091.94 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1050.54 | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1050.54 | USN-8095-5 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-riscv-6.14 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-riscv-6.8 | 6.8.0-106.106~22.04.1 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2025-39697 |
| Ubuntu:24.04:LTS | linux-xilinx | 6.8.0-1029.30 | USN-8261-1 |
| Ubuntu:24.04:LTS | linux-xilinx | 6.8.0-1028.29 | UBUNTU-CVE-2025-39697 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1061.65 | UBUNTU-CVE-2025-39697 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | bd37d6fce184836bd5e7cd90ce40116a4fadaf2a – before 0ff42a32784e0f2cb46a46da8e9f473538c13e1bbd37d6fce184836bd5e7cd90ce40116a4fadaf2a – before f230d40147cc37eb3aef4d50e2e2c06ea73d9a77bd37d6fce184836bd5e7cd90ce40116a4fadaf2a – before c32e3c71aaa1c1ba05da88605e2ddd493c58794fbd37d6fce184836bd5e7cd90ce40116a4fadaf2a – before 181feb41f0b268e6288bf9a7b984624d7fe2031dbd37d6fce184836bd5e7cd90ce40116a4fadaf2a – before 92278ae36935a54e65fef9f8ea8efe7e80481acebd37d6fce184836bd5e7cd90ce40116a4fadaf2a – before 202a3432d21ac060629a760fff3b0a39859da3eabd37d6fce184836bd5e7cd90ce40116a4fadaf2a – before 76d2e3890fb169168c73f2e4f8375c7cc24a765e |
| Linux | Linux | 4.14 |
References
- https://git.kernel.org/stable/c/0ff42a32784e0f2cb46a46da8e9f473538c13e1b
- https://git.kernel.org/stable/c/f230d40147cc37eb3aef4d50e2e2c06ea73d9a77
- https://git.kernel.org/stable/c/c32e3c71aaa1c1ba05da88605e2ddd493c58794f
- https://git.kernel.org/stable/c/181feb41f0b268e6288bf9a7b984624d7fe2031d
- https://git.kernel.org/stable/c/92278ae36935a54e65fef9f8ea8efe7e80481ace
- https://git.kernel.org/stable/c/202a3432d21ac060629a760fff3b0a39859da3ea
- https://git.kernel.org/stable/c/76d2e3890fb169168c73f2e4f8375c7cc24a765e
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html