CVE-2025-71082: Bluetooth: btusb: revert use of devm_kzalloc in btusb
Bluetooth: btusb: revert use of devmkzalloc in btusb
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.113-1Fixed in 7.2.12-1Fixed in 7.2.13-1 - Compensating control
Revert commit 98921dbd00c4e in btusb.c, remove the use of devm_kzalloc for btusb data, and free the memory explicitly so its lifetime is not tied to a single interface.
Event History
Frequently Asked Questions
What is the severity of CVE-2025-71082?
CVE-2025-71082 is classified as a moderate severity vulnerability affecting Bluetooth functionality in the Linux kernel.
How do I fix CVE-2025-71082?
To fix CVE-2025-71082, update the Linux kernel to the latest version that applies the appropriate security patches.
What affects CVE-2025-71082?
CVE-2025-71082 affects the Bluetooth subsystems in various versions of the Linux kernel.
What type of vulnerability is CVE-2025-71082?
CVE-2025-71082 is a software vulnerability due to improper memory management in the Bluetooth driver's implementation.
Can CVE-2025-71082 lead to exploitation?
Yes, CVE-2025-71082 has the potential to be exploited, leading to denial of service or other impacts on affected systems.