Vulnerability 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).
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.20, < 5.4.125 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/368c5d45a87e1bcc7f1e98e0c255c37b7b12c5d6Patch
- https://git.kernel.org/stable/c/4b4f6cecca446abcb686c6e6c451d4f1ec1a7497Patch
- https://git.kernel.org/stable/c/9cf27473f21913a3eaf4702dd2a25415afd5f33fPatch
- https://git.kernel.org/stable/c/b5d013c4c76b276890135b5d32803c4c63924b77Patch
- https://git.kernel.org/stable/c/368c5d45a87e1bcc7f1e98e0c255c37b7b12c5d6Patch
- https://git.kernel.org/stable/c/4b4f6cecca446abcb686c6e6c451d4f1ec1a7497Patch
- https://git.kernel.org/stable/c/9cf27473f21913a3eaf4702dd2a25415afd5f33fPatch
- https://git.kernel.org/stable/c/b5d013c4c76b276890135b5d32803c4c63924b77Patch
FAQ
What is CVE-2021-47120?
CVE-2021-47120 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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") adde...
How severe is CVE-2021-47120?
CVE-2021-47120 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-47120?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.