Executive Summary

Informations
Name CVE-2021-47453 First vendor Publication 2024-05-22
Vendor Cve Last vendor Modification 2024-05-22

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

ice: Avoid crash from unnecessary IDA free

In the remove path, there is an attempt to free the aux_idx IDA whether it was allocated or not. This can potentially cause a crash when unloading the driver on systems that do not initialize support for RDMA. But, this free cannot be gated by the status bit for RDMA, since it is allocated if the driver detects support for RDMA at probe time, but the driver can enter into a state where RDMA is not supported after the IDA has been allocated at probe time and this would lead to a memory leak.

Initialize aux_idx to an invalid value and check for a valid value when unloading to determine if an IDA free is necessary.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-47453

Sources (Detail)

https://git.kernel.org/stable/c/73e30a62b19b9fbb4e6a3465c59da186630d5f2e
https://git.kernel.org/stable/c/777682e59840e24e6c5672197e6ffbcf4bff823b
Source Url

Alert History

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0
1
Date Informations
2024-05-22 17:27:27
  • Multiple Updates
2024-05-22 13:27:32
  • First insertion