CVE-2021-47306

net: fddi: fix UAF in fza_probe

Description

In the Linux kernel, the following vulnerability has been resolved: net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause UAF bug. Fix it by moving free_netdev() after error message. TURBOchannel adapter")

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.05%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/04b06716838bfc26742dbed3ae1d3697fe5317ee patch
https://git.kernel.org/stable/c/f33605908a9b6063525e9f68e62d739948c5fccf patch
https://git.kernel.org/stable/c/bdfbb51f7a437ae8ea91317a5c133ec13adf3c47 patch
https://git.kernel.org/stable/c/deb7178eb940e2c5caca1b1db084a69b2e59b4c9 patch

Frequently Asked Questions

What is the severity of CVE-2021-47306?
CVE-2021-47306 has been scored as a high severity vulnerability.
How to fix CVE-2021-47306?
To fix CVE-2021-47306, 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-2021-47306 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-47306 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-2021-47306?
CVE-2021-47306 affects Linux Linux, Linux Linux.
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