Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: af_bluetooth: Fix deadlock
Attemting to do sock_lock on .recvmsg may cause a deadlock as shown bellow, so instead of using sock_sock this uses sk_receive_queue.lock on bt_sock_ioctl to avoid the UAF:
INFO: task kworker/u9:1:121 blocked for more than 30 seconds.
Not tainted 6.7.6-lemon #183
Workqueue: hci0 hci_rx_work
Call Trace:
Details
- Affected product:
- AlmaLinux 9.2 ESU , CentOS 6 ELS , CentOS 7 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , CloudLinux 6 ELS , CloudLinux 7 ELS , Oracle Linux 6 ELS , TuxCare 9.6 ESU , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS
- Affected packages:
- kernel @ 2.6.32 (+12 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| AlmaLinux 9 | Released |
29 kernels
|
| Oracle Linux 9 | Released |
35 kernels
|
| Proxmox VE 7 5.15 | Released |
47 kernels
|
| RHEL 9 | Released |
29 kernels
|
| Rocky Linux 9 | Released |
29 kernels
|
| Ubuntu 14.04 HWE ESM | Will Not Fix | — |
| Ubuntu 16.04 AWS ESM | Will Not Fix | — |
| Ubuntu 16.04 AWS HWE ESM | Will Not Fix | — |
| Ubuntu 16.04 Azure ESM | Will Not Fix | — |
| Ubuntu 16.04 ESM | Will Not Fix | — |
| Ubuntu 16.04 GCP ESM | Will Not Fix | — |
| Ubuntu 16.04 HWE ESM | Will Not Fix | — |
| Ubuntu 18.04 AWS Focal | Released |
56 kernels
|
| Ubuntu 18.04 HWE Focal | Released |
69 kernels
|
| Ubuntu 20.04 | Released |
112 kernels
|
| Ubuntu 20.04 AWS | Released |
95 kernels
|
| Ubuntu 20.04 Azure | Released |
86 kernels
|
| Ubuntu 20.04 GCP | Planned | — |
| Ubuntu 20.04 HWE AWS | Released |
42 kernels
|
| Ubuntu 20.04 HWE Azure | Released |
26 kernels
|
| Ubuntu 22.04 | Released |
55 kernels
|
| Ubuntu 22.04 AWS | Released |
49 kernels
|
| Ubuntu 22.04 Azure | Released |
46 kernels
|
| Ubuntu 24.04 | Released |
1 kernel
|