What’s Vulnerable › Vulnerabilities

CVE-2025-37985: USB: wdm: close race between wdm_open and wdm_wwan_port_stop

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-20 · updated 2026-06-17
• Weakness: CWE-362

Description

In the Linux kernel, the following vulnerability has been resolved: USB: wdm: close race between wdm_open and wdm_wwan_port_stop Clearing WDM_WWAN_IN_USE must be the last action or we can open a chardev whose URBs are still poisoned

Affected products

• Debian Linux: 11.0
• Linux kernel: from 5.14 before 5.15.181; from 5.16 before 6.1.136; from 6.2 before 6.6.89; from 6.7 before 6.12.26; from 6.13 before 6.14.5; 6.15-rc1, 6.15-rc2, 6.15-rc3 — fixed in 5.15.181, 6.1.136, 6.12.26, 6.14.5, 6.6.89

How to fix

Upgrade to a fixed version: Linux kernel 5.15.181, 6.1.136, 6.12.26, 6.14.5. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/217fe1fc7d112595a793e02b306710e702eac492
• https://git.kernel.org/stable/c/52ae15c665b5fe5876655aaccc3ef70560b0e314
• https://git.kernel.org/stable/c/54f7f8978af19f899dec80bcc71c8d4855dfbd72
• https://git.kernel.org/stable/c/b02a3fef3e8c8fe5a0a266f7a14f38cc608fb167
• https://git.kernel.org/stable/c/c1846ed4eb527bdfe6b3b7dd2c78e2af4bf98f4f
• https://git.kernel.org/stable/c/e3c9adc69357fcbe6253a2bc2588ee4bbaaedbe9
• https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

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