Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
dlm: validate length in dlm_search_rsb_tree
The len parameter in dlm_dump_rsb_name() is not validated and comes from network messages. When it exceeds DLM_RESNAME_MAXLEN, it can cause out-of-bounds write in dlm_search_rsb_tree().
Add length validation to prevent potential buffer overflow.
Details
- Affected product:
- AlmaLinux 9.2 ESU , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , TuxCare 9.6 ESU
- Affected packages:
- kernel @ 5.14.0 (+4 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| AlmaLinux 8 | Released |
107 kernels
|
| AlmaLinux 9 | Released |
109 kernels
|
| AlmaLinux 9.2 ESU | Planned | — |
| CentOS 8 | Released |
21 kernels
|
| CloudLinux OS 7h | Released |
103 kernels
|
| CloudLinux OS 8 | Released |
100 kernels
|
| Debian 13 | Planned | — |
| Oracle Linux 8 | Released |
116 kernels
|
| Oracle Linux 9 | Released |
109 kernels
|
| RHEL 7 | In Progress | — |
| RHEL 8 | Released |
111 kernels
|
| RHEL 9 | Released |
107 kernels
|
| Rocky Linux 8 | Released |
89 kernels
|
| Rocky Linux 9 | Released |
87 kernels
|