Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
ppdev: Add an error check in register_device
In register_device, the return value of ida_simple_get is unchecked, in witch ida_simple_get will use an invalid index value.
To address this issue, index should be checked after ida_simple_get. When the index value is abnormal, a warning message should be printed, the port should be dropped, and the value should be recorded.
Details
- Affected product:
- AlmaLinux 9.2 ESU , CentOS 8.4 ELS , CentOS 8.5 ELS , CentOS Stream 8 ELS , Oracle Linux 7 ELS , Ubuntu 16.04 ELS , Ubuntu 18.04 ELS
- Affected packages:
- kernel @ 4.18.0 (+8 more)
In the Linux kernel, the following vulnerability has been resolved:
ppdev: Add an error check in register_device
In register_device, the return value of ida_simple_get is unchecked, in witch ida_simple_get will use an invalid index value.
To address this issue, index should be checked after ida_simple_get. When the index value is abnormal, a warning message should be printed, the port should be dropped, and the value should be recorded.