CVE-2026-64178

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.)

References

• 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