CVE-2026-64178
Bluetooth: bnep: Fix UAF read of dev->name
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Description
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.)
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/a75bbcb10cb21acc169b785e9804f57d97873a9c
- https://git.kernel.org/stable/c/4907596f25b1720fa948371ac5f6c1f8da10a5bc
- https://git.kernel.org/stable/c/915a92182e2cda9cd7d2479020a44c6eda986f7c
- https://git.kernel.org/stable/c/fe69f634b076ae3ca81c5a5b845d9bba527036f7
- https://git.kernel.org/stable/c/b21805258d7e926adfd455fc820a447b90da3b82
References (8)
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