PT-2024-11447 · Linux+2 · Linux Kernel+2
Jun Miao
·
Published
2021-10-04
·
Updated
2024-06-25
·
CVE-2021-47453
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to the ice driver in the Linux kernel, where an attempt to free the aux idx IDA can cause a crash when unloading the driver on systems that do not initialize support for RDMA. This is because the IDA is allocated if the driver detects support for RDMA at probe time, but the driver can enter a state where RDMA is not supported after the IDA has been allocated, leading to a memory leak. The fix involves initializing aux idx to an invalid value and checking for a valid value when unloading to determine if an IDA free is necessary.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Memory Leak
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Suse