Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
soc: fsl: qbman: Always disable interrupts when taking cgr_lock
smp_call_function_single disables IRQs when executing the callback. To prevent deadlocks, we must disable IRQs when taking cgr_lock elsewhere. This is already done by qman_update_cgr and qman_delete_cgr; fix the other lockers.
Details
- Affected product:
- AlmaLinux 9.2 ESU , Amazon Linux 2 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , Debian 10 ELS , Oracle Linux 7 ELS , TuxCare 9.6 ESU , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS , Ubuntu 20.04 ELS
- Affected packages:
- kernel-uek @ 5.4.17 (+12 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| Debian 10 | Will Not Fix | — |
| Debian 10 cloud | Will Not Fix | — |
| Proxmox VE 7 5.15 | Released |
45 kernels
|
| Ubuntu 18.04 AWS Focal | Released |
56 kernels
|
| Ubuntu 18.04 HWE Focal | Released |
69 kernels
|
| Ubuntu 20.04 | Released |
110 kernels
|
| Ubuntu 20.04 AWS | Released |
93 kernels
|
| Ubuntu 20.04 Azure | Released |
84 kernels
|
| Ubuntu 20.04 GCP | Planned | — |
| Ubuntu 20.04 HWE AWS | Released |
41 kernels
|
| Ubuntu 20.04 HWE Azure | Released |
25 kernels
|
| Ubuntu 22.04 | Released |
54 kernels
|
| Ubuntu 22.04 AWS | Released |
48 kernels
|
| Ubuntu 22.04 Azure | Released |
45 kernels
|
| Ubuntu 24.04 | Released |
1 kernel
|