Log in Start free

Vulnerability · Published Jul 25, 2025 · Assigned by Linux

CVE-2025-38393NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN

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 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 65.1% 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: NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN We found a few different systems hung up in writeback waiting on the same page lock, and one task waiting on the NFS_LAYOUT_DRAIN bit in pnfs_update_layout(), however the pnfs_layout_hdr's plh_outstanding count was zero. It seems most likely that this is another race between the waiter and waker similar to commit ed0172af5d6f ("SUNRPC: Fix a race to wake a sync task"). Fix it up by applying the advised barrier.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-abi-stablelists4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-core4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-cross-headers4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-debug4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-debug-core4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-debug-devel4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-debug-modules4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-devel4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-doc4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-headers4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-modules4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-modules-extra4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-tools4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-tools-libs4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-zfcpdump4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8perf4.18.0-553.64.1.el8_10ALSA-2025:11850
AlmaLinux:8python3-perf4.18.0-553.64.1.el8_10ALSA-2025:11850
Debian:12linux6.1.147-1DEBIAN-CVE-2025-38393
Debian:13linux6.12.37-1DEBIAN-CVE-2025-38393
Debian:14linux6.12.37-1DEBIAN-CVE-2025-38393
Ubuntu:22.04:LTSlinux5.15.0-156.166UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-aws5.15.0-1092.99UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1015.15~24.04.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-azure5.15.0-1096.105UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-azure-6.146.14.0-1014.14~24.04.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1096.105.1UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-38393
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-azure-nvidia-6.146.14.0-1007.7UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-gcp5.15.0-1092.101UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1018.19~24.04.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-gke5.15.0-1089.95UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1075.83UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-ibm5.15.0-1086.89UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1087.93UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-kvm5.15.0-1088.93UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-156.166UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1087.88UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1045.45UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1034.34UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1014.14UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-oracle5.15.0-1090.96UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1015.15~24.04.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-raspi5.15.0-1086.89UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-riscv-6.146.14.0-34.34.1~24.04.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-38393
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-38393
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1056.60UBUNTU-CVE-2025-38393

Affected products (as reported)

VendorProductVersions
Linux Linux 8acc3e228e1c90bd410f73597a4549e0409f22d6 – before 08287df60bac5b008b6bcdb03053988335d3d282ec23a86e060cbe30b62eb2955adc97c92d80cc4c – before 8846fd02c98da8b79e6343a20e6071be6f372180880265c77ac415090090d1fe72a188fee71cb458 – before e4b13885e7ef1e64e45268feef1e5f0707c47e72880265c77ac415090090d1fe72a188fee71cb458 – before 8ca65fa71024a1767a59ffbc6a6e2278af84735e880265c77ac415090090d1fe72a188fee71cb458 – before 864a54c1243ed3ca60baa4bc492dede1361f4c83880265c77ac415090090d1fe72a188fee71cb458 – before 1f4da20080718f258e189a2c5f515385fa393da6880265c77ac415090090d1fe72a188fee71cb458 – before c01776287414ca43412d1319d2877cbad65444acf133819e24e78f3aaaa00e9fa2b816d5f73fd172
Linux Linux 5.19

References