Vulnerability · Published Apr 1, 2025 · Assigned by Linux
CVE-2025-21918usb: typec: ucsi: Fix NULL pointer access
Medium 5.5
In plain English
A medium-severity null pointer dereference 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 14% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 86.1% 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: usb: typec: ucsi: Fix NULL pointer access Resources should be released only after all threads that utilize them have been destroyed. This commit ensures that resources are not released prematurely by waiting for the associated workqueue to complete before deallocating them.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 6.1.133-1 | DEBIAN-CVE-2025-21918 |
| Debian:13 | linux | 6.12.19-1 | DEBIAN-CVE-2025-21918 |
| Debian:14 | linux | 6.12.19-1 | DEBIAN-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux | 6.8.0-84.84 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux | 6.8.0-84.84 | USN-7764-1 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-aws | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1039.41 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1039.41 | USN-7764-1 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1039.41~22.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1039.41~22.04.1 | USN-7766-1 |
| Ubuntu:22.04:LTS | linux-azure | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1038.44 | USN-7802-1 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1038.44 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | 6.11.0-1018.18~24.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-azure-6.11 | 6.11.0-1018.18~24.04.1 | USN-7628-1 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1036.42~22.04.1 | USN-7802-1 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1036.42~22.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-azure-fde | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-azure-nvidia | 6.8.0-1025.27 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-azure-nvidia | 6.8.0-1025.27 | USN-7809-1 |
| Ubuntu:22.04:LTS | linux-gcp | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1040.42 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1040.42 | USN-7764-1 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | 6.11.0-1016.16~24.04.1 | USN-7605-1 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 | 6.11.0-1016.16~24.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1040.42~22.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1040.42~22.04.1 | USN-7766-1 |
| Ubuntu:22.04:LTS | linux-gke | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1036.40 | USN-7764-1 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1036.40 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-gkeop | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1023.25 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1023.25 | USN-7764-1 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | 6.11.0-28.28~24.04.1 | USN-7605-1 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 | 6.11.0-28.28~24.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-85.85~22.04.1 | USN-7801-1 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-84.84~22.04.1 | USN-7764-2 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-85.85~22.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-ibm | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1037.37 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1037.37 | USN-7779-1 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | 6.8.0-1037.37~22.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 | 6.8.0-1037.37~22.04.1 | USN-7779-1 |
| Ubuntu:24.04:LTS | linux-intel | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-intel-iotg | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-kvm | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-lowlatency | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-84.84.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-84.84.1 | USN-7764-1 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 | 6.11.0-1015.16~24.04.2 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 | 6.11.0-1015.16~24.04.2 | USN-7605-2 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | 6.8.0-84.84.1~22.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | 6.8.0-84.84.1~22.04.1 | USN-7764-1 |
| Ubuntu:22.04:LTS | linux-nvidia | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-nvidia | 6.8.0-1039.42 | USN-7765-1 |
| Ubuntu:24.04:LTS | linux-nvidia | 6.8.0-1039.42 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 | 6.11.0-1012.12 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 6.8.0-1039.42~22.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 6.8.0-1039.42~22.04.1 | USN-7765-1 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 6.8.0-1039.42.1 | USN-7765-1 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 6.8.0-1039.42.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra | 6.8.0-1010.10 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-oem-6.11 | 6.11.0-1024.24 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-oem-6.11 | 6.11.0-1024.24 | USN-7606-1 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-oracle | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1037.38 | USN-7801-2 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1037.38 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1037.38~22.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1037.38~22.04.1 | USN-7801-3 |
| Ubuntu:22.04:LTS | linux-raspi | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1039.43 | USN-7790-1 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1039.43 | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-riscv-6.8 | 6.8.0-84.84~22.04.1 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2025-21918 |
| Ubuntu:24.04:LTS | linux-xilinx | 6.8.0-1018.19 | UBUNTU-CVE-2025-21918 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | no fix listed | UBUNTU-CVE-2025-21918 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | b9aa02ca39a49740926c2c450a1505a4a0f8954a – before 7a735a8a46f6ebf898bbefd96659ca5da798bce0b9aa02ca39a49740926c2c450a1505a4a0f8954a – before 46fba7be161bb89068958138ea64ec33c0b446d4b9aa02ca39a49740926c2c450a1505a4a0f8954a – before 079a3e52f3e751bb8f5937195bdf25c5d14fdff0b9aa02ca39a49740926c2c450a1505a4a0f8954a – before 592a0327d026a122e97e8e8bb7c60cbbe7697344b9aa02ca39a49740926c2c450a1505a4a0f8954a – before b13abcb7ddd8d38de769486db5bd917537b32ab1 |
| Linux | Linux | 5.16 |
Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- https://git.kernel.org/stable/c/7a735a8a46f6ebf898bbefd96659ca5da798bce0
- https://git.kernel.org/stable/c/46fba7be161bb89068958138ea64ec33c0b446d4
- https://git.kernel.org/stable/c/079a3e52f3e751bb8f5937195bdf25c5d14fdff0
- https://git.kernel.org/stable/c/592a0327d026a122e97e8e8bb7c60cbbe7697344
- https://git.kernel.org/stable/c/b13abcb7ddd8d38de769486db5bd917537b32ab1
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html