CVE-2021-47120

HID: magicmouse: fix NULL-deref on disconnect

Description

In the Linux kernel, the following vulnerability has been resolved: HID: magicmouse: fix NULL-deref on disconnect Commit 9d7b18668956 ("HID: magicmouse: add support for Apple Magic Trackpad 2") added a sanity check for an Apple trackpad but returned success instead of -ENODEV when the check failed. This means that the remove callback will dereference the never-initialised driver data pointer when the driver is later unbound (e.g. on USB disconnect).

Category

5.5
CVSS
Severity: Medium
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/368c5d45a87e1bcc7f1e98e0c255c37b7b12c5d6 patch
https://git.kernel.org/stable/c/b5d013c4c76b276890135b5d32803c4c63924b77 patch
https://git.kernel.org/stable/c/9cf27473f21913a3eaf4702dd2a25415afd5f33f patch
https://git.kernel.org/stable/c/4b4f6cecca446abcb686c6e6c451d4f1ec1a7497 patch

Frequently Asked Questions

What is the severity of CVE-2021-47120?
CVE-2021-47120 has been scored as a medium severity vulnerability.
How to fix CVE-2021-47120?
To fix CVE-2021-47120, 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-2021-47120 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-47120 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-2021-47120?
CVE-2021-47120 affects Linux Linux, Linux Linux.
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