Log in Start free

Vulnerability · Published Jul 4, 2025 · Assigned by Linux

CVE-2025-38208smb: client: add NULL check in automount_fullpath

Medium 5.5

In plain English

A medium-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 NVD)5.5Medium
Exploit odds (30 days)0.2%top 92.6% 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: smb: client: add NULL check in automount_fullpath page is checked for null in __build_path_from_dentry_optional_prefix when tcon->origin_fullpath is not set. However, the check is missing when it is set. Add a check to prevent a potential NULL pointer dereference.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.35-1DEBIAN-CVE-2025-38208
Debian:14linux6.12.35-1DEBIAN-CVE-2025-38208
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1015.15~24.04.1UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1015.15~24.04.1USN-7833-3
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-azure-6.146.14.0-1014.14~24.04.1UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-azure-6.146.14.0-1014.14~24.04.1USN-7834-1
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-38208
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-azure-nvidia-6.146.14.0-1007.7UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-azure-nvidia-6.146.14.0-1007.7USN-7834-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1018.19~24.04.1UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1018.19~24.04.1USN-7833-4
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-hwe-6.146.14.0-34.34~24.04.1USN-7856-1
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1014.14USN-7833-1
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1014.14UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1015.15~24.04.1USN-7833-1
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1015.15~24.04.1UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-riscv-6.146.14.0-34.34.1~24.04.1UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-38208
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-38208
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-38208

Affected products (as reported)

VendorProductVersions
Linux Linux d5a863a153e90996ab2aef6b9e08d509f4d5662b – before 37166d63e42c34846a16001950ecec96229a8d17d5a863a153e90996ab2aef6b9e08d509f4d5662b – before a9e916fa5c7d0ec2256aa44aa24ddd92f529ce35d5a863a153e90996ab2aef6b9e08d509f4d5662b – before cce8e71ca1f7ad9045707f0d22490c1e9ed1df6cd5a863a153e90996ab2aef6b9e08d509f4d5662b – before f1e7a277a1736e12cc4bd6d93b8a5c439b8ca20ce91802036b3e6e6e803a17ddf5783a6354fe53806.2.13 – before 6.3
Linux Linux 6.3

References