What’s Vulnerable › Vulnerabilities

CVE-2025-38304: Bluetooth: Fix NULL pointer deference on eir_get_service_data

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-07-10 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix NULL pointer deference on eir_get_service_data The len parameter is considered optional so it can be NULL so it cannot be used for skipping to next entry of EIR_SERVICE_DATA.

Affected products

• Debian Linux: 11.0
• Linux kernel: from 5.19 before 6.1.142; from 6.2 before 6.6.94; from 6.7 before 6.12.34; from 6.13 before 6.15.3; 6.16-rc1 — fixed in 6.1.142, 6.12.34, 6.15.3, 6.6.94

How to fix

Upgrade to a fixed version: Linux kernel 6.1.142, 6.12.34, 6.15.3, 6.6.94. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/20a2aa01f5aeb6daad9aeaa7c33dd512c58d81eb
• https://git.kernel.org/stable/c/497c9d2d7d3983826bb02c10fb4a5818be6550fb
• https://git.kernel.org/stable/c/4bf29910570666e668a60d953f8da78e95bb7fa2
• https://git.kernel.org/stable/c/7d99cc0f8e6fa0f35570887899f178122a61d44e
• https://git.kernel.org/stable/c/842f7c3154d5b25ca11753c02ee8cf6ee64c0142
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

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