Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
leds: uleds: Fix potential buffer overread
The name string supplied by userspace is not guaranteed to be null-terminated, so using strchr() on it might result in a buffer overread. The same thing will happen when said string is used by the LED class device.
Fix this by using strnchr() instead and explicitly check that the name string is properly null-terminated.
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 , Debian 11 ELS , Oracle Linux 7 ELS , TuxCare 9.6 ESU , TuxCare 9.8 ESU , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS , Ubuntu 20.04 ELS
- Affected packages:
- linux @ 4.19.0 (+12 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| Debian 12 | Will Not Fix |
42 kernels
|
| Debian 13 | Will Not Fix |
13 kernels
|
| Oracle Linux 8 UEK 7 | Will Not Fix |
112 kernels
|
| Oracle Linux 9 UEK 7 | Will Not Fix |
112 kernels
|
| Ubuntu 22.04 | Planned | — |
| Ubuntu 22.04 AWS | Planned | — |
| Ubuntu 22.04 Azure | Planned | — |
| Ubuntu 24.04 | Planned | — |
| Ubuntu 24.04 AWS | Planned | — |
| Ubuntu 26.04 | In Rollout |
2 kernels
|