// For flags

CVE-2021-46932

Input: appletouch - initialize work before device registration

Severity Score

5.5
*CVSS v3.1

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:

Input: appletouch - initialize work before device registration

Syzbot has reported warning in __flush_work(). This warning is caused by
work->func == NULL, which means missing work initialization.

This may happen, since input_dev->close() calls
cancel_work_sync(&dev->work), but dev->work initalization happens _after_
input_register_device() call.

So this patch moves dev->work initialization before registering input
device

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: Entrada: appletouch: inicializa el trabajo antes del registro del dispositivo Syzbot ha informado una advertencia en __flush_work(). Esta advertencia es causada por work->func == NULL, lo que significa que falta la inicialización del trabajo. Esto puede suceder, ya que input_dev->close() llama a cancel_work_sync(&dev->work), pero la inicialización dev->work ocurre _después_ de la llamada input_register_device(). Entonces este parche mueve la inicialización dev->work antes de registrar el dispositivo de entrada

*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
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-25 CVE Reserved
  • 2024-02-27 CVE Published
  • 2024-04-21 EPSS Updated
  • 2024-12-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-665: Improper Initialization
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"
>= 2.6.23 < 4.4.298
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.23 < 4.4.298"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.23 < 4.9.296
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.23 < 4.9.296"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.23 < 4.14.261
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.23 < 4.14.261"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.23 < 4.19.224
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.23 < 4.19.224"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.23 < 5.4.170
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.23 < 5.4.170"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.23 < 5.10.90
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.23 < 5.10.90"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.23 < 5.15.13
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.23 < 5.15.13"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.23 < 5.16
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.23 < 5.16"
en
Affected