Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses
The panasonic laptop code in various places uses the SINF array with index values of 0 - SINF_CUR_BRIGHT(0x0d) without checking that the SINF array is big enough.
Not all panasonic laptops have this many SINF array entries, for example the Toughbook CF-18 model only has 10 SINF array entries. So it only supports the AC+DC brightness entries and mute.
Check that the SINF array has a minimum size which covers all AC+DC brightness entries and refuse to load if the SINF array is smaller.
For higher SINF indexes hide the sysfs attributes when the SINF array does not contain an entry for that attribute, avoiding show()/store() accessing the array out of bounds and add bounds checking to the probe() and resume() code accessing these.
Details
- Affected product:
- AlmaLinux 9.2 ESU , Amazon Linux 2 ELS , CentOS 7 ELS , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , CloudLinux 7 ELS , Debian 10 ELS , Oracle Linux 7 ELS , RHEL 7 ELS , TuxCare 9.6 ESU , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS , Ubuntu 20.04 ELS
- Affected packages:
- kernel @ 3.10.0 (+15 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| Debian 12 | Ready For Release | — |
| Oracle Linux 8 UEK 7 | Released |
47 kernels
|
| Oracle Linux 9 UEK 7 | Released |
47 kernels
|
| Proxmox VE 7 5.15 | Will Not Fix |
47 kernels
|
| Ubuntu 20.04 HWE AWS | Will Not Fix |
49 kernels
|
| Ubuntu 20.04 HWE Azure | Will Not Fix |
32 kernels
|
| Ubuntu 22.04 | Will Not Fix |
63 kernels
|
| Ubuntu 22.04 AWS | Will Not Fix |
56 kernels
|
| Ubuntu 22.04 Azure | Will Not Fix |
52 kernels
|
| Ubuntu 24.04 | Ready For Release | — |