What’s Vulnerable › Vulnerabilities

CVE-2024-35978: Bluetooth: Fix memory leak in hci_req_sync_complete()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-20 · updated 2026-10-15
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix memory leak in hci_req_sync_complete() In 'hci_req_sync_complete()', always free the previous sync request state before assigning reference to a new one.

Affected products

• Linux kernel: from 4.1 before 4.19.313; from 4.20 before 5.4.275; from 5.5 before 5.10.216; from 5.11 before 5.15.156; from 5.16 before 6.1.87; from 6.2 before 6.6.28 — fixed in 4.19.313, 5.10.216, 5.15.156, 5.4.275, 6.1.87, 6.6.28

How to fix

Upgrade to a fixed version: Linux kernel 4.19.313, 5.10.216, 5.15.156, 5.4.275. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/45d355a926ab40f3ae7bc0b0a00cb0e3e8a5a810
• https://git.kernel.org/stable/c/4beab84fbb50df3be1d8f8a976e6fe882ca65cb2
• https://git.kernel.org/stable/c/66fab1e120b39f8f47a94186ddee36006fc02ca8
• https://git.kernel.org/stable/c/75193678cce993aa959e7764b6df2f599886dd06
• https://git.kernel.org/stable/c/8478394f76c748862ef179a16f651f752bdafaf0
• https://git.kernel.org/stable/c/89a32741f4217856066c198a4a7267bcdd1edd67
• https://git.kernel.org/stable/c/9ab5e44b9bac946bd49fd63264a08cd1ea494e76
• https://git.kernel.org/stable/c/e4cb8382fff6706436b66eafd9c0ee857ff0a9f5
• https://git.kernel.org/stable/c/45d355a926ab40f3ae7bc0b0a00cb0e3e8a5a810
• https://git.kernel.org/stable/c/4beab84fbb50df3be1d8f8a976e6fe882ca65cb2
• https://git.kernel.org/stable/c/66fab1e120b39f8f47a94186ddee36006fc02ca8
• https://git.kernel.org/stable/c/75193678cce993aa959e7764b6df2f599886dd06

Get alerted when CVE-2024-35978 or the next vulnerability affects your stack