CVE-2021-47120
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…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.