Riskcovery

CVE-2021-47120

HID: magicmouse: fix NULL-deref on disconnect

State
Published
Severity
Not scored
Published
Mar 15, 2024
Updated
May 11, 2026
Reserved
Mar 4, 2024

Read the record on cve.org

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).

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 9d7b18668956c411a422d04c712994c5fdb23a4b to before 368c5d45a87e1bcc7f1e98e0c255c37b7b12c5d6Affected
  • 9d7b18668956c411a422d04c712994c5fdb23a4b to before b5d013c4c76b276890135b5d32803c4c63924b77Affected
  • 9d7b18668956c411a422d04c712994c5fdb23a4b to before 9cf27473f21913a3eaf4702dd2a25415afd5f33fAffected
  • 9d7b18668956c411a422d04c712994c5fdb23a4b to before 4b4f6cecca446abcb686c6e6c451d4f1ec1a7497Affected
LinuxLinux
  • 4.20Affected
  • before 4.20Not affected
  • 5.4.125 through 5.4.*Not affected
  • 5.10.43 through 5.10.*Not affected
  • 5.12.10 through 5.12.*Not affected
  • 5.13 and laterNot affected

References

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