hci_conn_cleanup in net/bluetooth/hci_conn.c in the Linux kernel through 6.2.9 has a use-after-free (observed in hci_conn_hash_flush) because of calls to hci_dev_put and hci_conn_put. There is a double free that may lead to privilege escalation.
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | 6.1.25 (including) | 6.1.25 (including) |
| Linux_kernel | Linux | 6.2.12 (including) | 6.2.12 (including) |
| Linux_kernel | Linux | 6.3 (including) | 6.3 (including) |
| Linux_kernel | Linux | 6.3-rc1 (including) | 6.3-rc1 (including) |
| Linux_kernel | Linux | 6.3-rc2 (including) | 6.3-rc2 (including) |
| Linux_kernel | Linux | 6.3-rc3 (including) | 6.3-rc3 (including) |
| Linux_kernel | Linux | 6.3-rc4 (including) | 6.3-rc4 (including) |
| Linux_kernel | Linux | 6.3-rc5 (including) | 6.3-rc5 (including) |
| Linux_kernel | Linux | 6.3-rc6 (including) | 6.3-rc6 (including) |