// For flags

CVE-2021-47120

HID: magicmouse: fix NULL-deref on disconnect

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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).

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: HID: magicmouse: corrige NULL-deref al desconectarse. el commit 9d7b18668956 ("HID: magicmouse: agrega soporte para Apple Magic Trackpad 2") agregó una verificación de cordura para un trackpad de Apple pero devolvió el éxito. en lugar de -ENODEV cuando falló la verificación. Esto significa que la devolución de llamada de eliminación eliminará la referencia al puntero de datos del controlador nunca inicializado cuando el controlador se desvincule posteriormente (por ejemplo, al desconectarse el USB).

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).

The SUSE Linux Enterprise 15 SP3 LTSS kernel was updated to receive various security bug fixes.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-03-04 CVE Reserved
  • 2024-03-15 CVE Published
  • 2025-04-23 EPSS Updated
  • 2025-05-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.20 < 5.4.125
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.4.125"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.20 < 5.10.43
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.10.43"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.20 < 5.12.10
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.12.10"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.20 < 5.13
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.13"
en
Affected