Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
can: bcm: switch timer to HRTIMER_MODE_SOFT and remove hrtimer_tasklet
This patch switches the timer to HRTIMER_MODE_SOFT, which executed the timer callback in softirq context and removes the hrtimer_tasklet.
Details
- Affected product:
- CentOS 6 ELS , CentOS 7 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , CloudLinux 7 ELS , Debian 10 ELS , Oracle Linux 6 ELS , Oracle Linux 7 ELS , RHEL 7 ELS , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS , Ubuntu 20.04 ELS
- Affected packages:
- kernel @ 4.18.0 (+13 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| AlmaLinux 8 | Released |
126 kernels
|
| CentOS 8 | Released |
33 kernels
|
| CloudLinux OS 7h | Released |
116 kernels
|
| CloudLinux OS 8 | Released |
111 kernels
|
| Oracle Linux 8 | Released |
145 kernels
|
| RHEL 8 | Released |
142 kernels
|
| Rocky Linux 8 | Released |
104 kernels
|