high7.8
CVE-2026-43019
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync hci_conn lookup and field acc…
Impact
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync hci_conn lookup and field access must be covered by hdev lock in set_cig_params_sync, otherwise it's possible it is freed concurrently. Take hdev lock to prevent hci_conn from being deleted or modified concurrently. Just RCU lock is not suitable here, as we also want to avoid "tearing" in the configuration.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 6.6 before 6.12.81 from 6.13 before 6.18.22 from 6.19 before 6.19.12 Versions 6.4.16, 6.5.3, 7.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/66d432e9b45bae7881ffcdb12cd8fd0bf254ef02
- https://git.kernel.org/stable/c/7502c1cf303b69f71d085f5ff7251b0e1b0f09df
- https://git.kernel.org/stable/c/7d568fede8eac91161a60b710aa920abe9b0fb9f
- https://git.kernel.org/stable/c/a2639a7f0f5bf7d73f337f8f077c19415c62ed2c
- https://git.kernel.org/stable/c/bad65b4b0a96139f023eadc28a33125963208449