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Vulnerability · Published Jun 18, 2025 · Assigned by Linux

CVE-2025-38058__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock

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 7% 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 93.1% 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: __legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock ... or we risk stealing final mntput from sync umount - raising mnt_count after umount(2) has verified that victim is not busy, but before it has set MNT_SYNC_UMOUNT; in that case __legitimize_mnt() doesn't see that it's safe to quietly undo mnt_count increment and leaves dropping the reference to caller, where it'll be a full-blown mntput(). Check under mount_lock is needed; leaving the current one done before taking that makes no sense - it's nowhere near common enough to bother with.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.147-1DSA-5973-1
Debian:12linux6.1.147-1DEBIAN-CVE-2025-38058
Debian:13linux6.12.32-1DEBIAN-CVE-2025-38058
Debian:14linux6.12.32-1DEBIAN-CVE-2025-38058
Ubuntu:22.04:LTSlinux5.15.0-152.162UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux5.15.0-152.162USN-7704-1
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-aws5.15.0-1090.97UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-aws5.15.0-1090.97USN-7704-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1013.13~24.04.1UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1013.13~24.04.1USN-7769-3
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-azure5.15.0-1094.103UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1094.103.1UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-38058
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-azure-nvidia-6.146.14.0-1007.7UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-gcp5.15.0-1090.99UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-gcp5.15.0-1090.99USN-7704-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1016.17~24.04.1USN-7769-1
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1016.17~24.04.1UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-gke5.15.0-1087.93USN-7704-5
Ubuntu:22.04:LTSlinux-gke5.15.0-1087.93UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1073.81USN-7704-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1073.81UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-hwe-6.146.14.0-32.32~24.04.1USN-7769-3
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-ibm5.15.0-1084.87UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-ibm5.15.0-1084.87USN-7704-3
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1085.91USN-7704-3
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1085.91UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-kvm5.15.0-1086.91UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-kvm5.15.0-1086.91USN-7704-5
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-152.162USN-7704-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-152.162UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1085.86UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1085.86USN-7704-4
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1043.43UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1043.43USN-7704-1
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1032.32UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1032.32USN-7704-1
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1012.12USN-7771-1
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1012.12UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-oracle5.15.0-1088.94UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-oracle5.15.0-1088.94USN-7704-3
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1013.13~24.04.1UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1013.13~24.04.1USN-7789-1
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-raspi5.15.0-1084.87USN-7704-3
Ubuntu:22.04:LTSlinux-raspi5.15.0-1084.87UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-riscv-6.146.14.0-32.32.1~24.04.1UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-38058
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-38058
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1054.58USN-7704-1
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1054.58UBUNTU-CVE-2025-38058

Affected products (as reported)

VendorProductVersions
Linux Linux 48a066e72d970a3e225a9c18690d570c736fc455 – before 628fb00195ce21a90cf9e4e3d105cd9e58f77b4048a066e72d970a3e225a9c18690d570c736fc455 – before b89eb56a378b7b2c1176787fc228d0a57172bdd548a066e72d970a3e225a9c18690d570c736fc455 – before f6d45fd92f62845cbd1eb5128fd8f0ed7d0c5a4248a066e72d970a3e225a9c18690d570c736fc455 – before 9b0915e72b3cf52474dcee0b24a2f99d93e604a348a066e72d970a3e225a9c18690d570c736fc455 – before d8ece4ced3b051e656c77180df2e69e19e24edc148a066e72d970a3e225a9c18690d570c736fc455 – before 8cafd7266fa02e0863bacbf872fe635c0b9725eb48a066e72d970a3e225a9c18690d570c736fc455 – before b55996939c71a3e1a38f3cdc6a8859797efc908348a066e72d970a3e225a9c18690d570c736fc455 – before 250cf3693060a5f803c5f1ddc082bb06b16112a9
Linux Linux 3.13

References