CVE-2021-47138

cxgb4: avoid accessing registers when clearing filters

Description

In the Linux kernel, the following vulnerability has been resolved: cxgb4: avoid accessing registers when clearing filters Hardware register having the server TID base can contain invalid values when adapter is in bad state (for example, due to AER fatal error). Reading these invalid values in the register can lead to out-of-bound memory access. So, fix by using the saved server TID base when clearing filters.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.01%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/0bf49b3c8d8b3a43ce09f1b2db70e5484d31fcdf patch
https://git.kernel.org/stable/c/02f03883fdb10ad7e66717c70ea163a8d27ae6e7 patch
https://git.kernel.org/stable/c/285207a558ab456aa7d8aa877ecc7e91fcc51710 patch
https://git.kernel.org/stable/c/88c380df84fbd03f9b137c2b9d0a44b9f2f553b0 patch

Frequently Asked Questions

What is the severity of CVE-2021-47138?
CVE-2021-47138 has been scored as a high severity vulnerability.
How to fix CVE-2021-47138?
To fix CVE-2021-47138, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-47138 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-47138 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-47138?
CVE-2021-47138 affects Linux Linux, Linux Linux.
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