CVE-2026-64178

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: Fix UAF read of dev->name bnep_add_connection() needs to keep holding the bnep_session_sem while reading dev->name (just like bnep_get_connlist() does); otherwise the bnep_session() thread can concurrently free the net_device, which can for example be triggered by a concurrent bnep_del_connection(). (This UAF is fairly uninteresting from a security perspective; calling bnep_add_connection() requires passing a capable(CAP_NET_ADMIN) check. It also requires completely tearing down a netdev during a fairly tight race window.)

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/4907596f25b1720fa948371ac5f6c1f8da10a5bc
https://git.kernel.org/stable/c/5506aec795135cdd4cbf4e845929155663b25055
https://git.kernel.org/stable/c/59e932ded949fa6f0340bf7c6d7818f962fa4fd2
https://git.kernel.org/stable/c/915a92182e2cda9cd7d2479020a44c6eda986f7c
https://git.kernel.org/stable/c/a75bbcb10cb21acc169b785e9804f57d97873a9c
https://git.kernel.org/stable/c/b21805258d7e926adfd455fc820a447b90da3b82
https://git.kernel.org/stable/c/e7578529b97e5d4e439cf8f3e637c2303015338f
https://git.kernel.org/stable/c/fe69f634b076ae3ca81c5a5b845d9bba527036f7

Configurations

No configuration.

History

20 Jul 2026, 15:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8

19 Jul 2026, 16:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-19 16:18

Updated : 2026-07-20 15:17

NVD link : CVE-2026-64178

Mitre link : CVE-2026-64178

CVE.ORG link : CVE-2026-64178

JSON object : View

Products Affected

No product.

CWE

No CWE.

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otherwise the\nbnep_session() thread can concurrently free the net_device, which can for\nexample be triggered by a concurrent bnep_del_connection().\n\n(This UAF is fairly uninteresting from a security perspective;\ncalling bnep_add_connection() requires passing a capable(CAP_NET_ADMIN)\ncheck. It also requires completely tearing down a netdev during a fairly\ntight race window.)"}], "lastModified": "2026-07-20T15:17:13.570", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}