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Vulnerability · Published Jul 3, 2025 · Assigned by Linux

CVE-2025-38095dma-buf: insert memory barrier before updating num_fences

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 12% 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 88.0% 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: dma-buf: insert memory barrier before updating num_fences smp_store_mb() inserts memory barrier after storing operation. It is different with what the comment is originally aiming so Null pointer dereference can be happened if memory update is reordered.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.140-1DEBIAN-CVE-2025-38095
Debian:13linux6.12.30-1DEBIAN-CVE-2025-38095
Debian:14linux6.12.30-1DEBIAN-CVE-2025-38095
Ubuntu:22.04:LTSlinux5.15.0-163.173USN-7909-1
Ubuntu:22.04:LTSlinux5.15.0-163.173UBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-aws5.15.0-1097.104USN-7909-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1097.104UBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-aws-6.146.14.0-1011.11~24.04.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-azure5.15.0-1101.110UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-azure5.15.0-1101.110USN-7910-2
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1102.111.1UBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-38095
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-gcp5.15.0-1097.106UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-gcp5.15.0-1097.106USN-7909-4
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-gcp-6.146.14.0-1014.15~24.04.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-gke5.15.0-1093.99UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-gke5.15.0-1093.99USN-7909-4
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1080.88UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1080.88USN-7909-4
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-ibm5.15.0-1091.94UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-ibm5.15.0-1091.94USN-7909-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1092.98UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1092.98USN-7909-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1089.94UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-kvm5.15.0-1089.94USN-7933-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-163.173UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-163.173USN-7909-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1092.93UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1092.93USN-7909-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1049.49USN-7909-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1049.49UBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1038.38UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1038.38USN-7909-1
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-oem-6.146.14.0-1010.10UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-oracle5.15.0-1094.100UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-oracle5.15.0-1094.100USN-7909-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-oracle-6.146.14.0-1011.11~24.04.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-raspi5.15.0-1091.94UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-raspi5.15.0-1091.94USN-7909-5
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-riscv-6.146.14.0-28.28.1~24.04.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-38095
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1061.65UBUNTU-CVE-2025-38095
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1061.65USN-7909-1

Affected products (as reported)

VendorProductVersions
Linux Linux a590d0fdbaa56f482ff515e1040b6d9b1b200d63 – before 90eb79c4ed98a4e24a62ccf61c199ab0f680fa8fa590d0fdbaa56f482ff515e1040b6d9b1b200d63 – before d0b7f11dd68b593bd970e5735be00e8d89bace30a590d0fdbaa56f482ff515e1040b6d9b1b200d63 – before 3becc659f9cb76b481ad1fb71f54d5c8d6332d3fa590d0fdbaa56f482ff515e1040b6d9b1b200d63 – before c9d2b9a80d06a58f37e0dc8c827075639b443927a590d0fdbaa56f482ff515e1040b6d9b1b200d63 – before fe1bebd0edb22e3536cbc920ec713331d1367ad4a590d0fdbaa56f482ff515e1040b6d9b1b200d63 – before 08680c4dadc6e736c75bc2409d833f03f9003c51a590d0fdbaa56f482ff515e1040b6d9b1b200d63 – before 72c7d62583ebce7baeb61acce6057c361f73be4a
Linux Linux 5.0

References