// For flags

CVE-2024-26606

binder: signal epoll threads of self-work

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:

binder: signal epoll threads of self-work

In (e)poll mode, threads often depend on I/O events to determine when
data is ready for consumption. Within binder, a thread may initiate a
command via BINDER_WRITE_READ without a read buffer and then make use
of epoll_wait() or similar to consume any responses afterwards.

It is then crucial that epoll threads are signaled via wakeup when they
queue their own work. Otherwise, they risk waiting indefinitely for an
event leaving their work unhandled. What is worse, subsequent commands
won't trigger a wakeup either as the thread has pending work.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: carpeta: señal de epoll de subprocesos de autotrabajo En el modo (e)poll, los subprocesos a menudo dependen de eventos de E/S para determinar cuándo los datos están listos para el consumo. Dentro de Binder, un hilo puede iniciar un comando a través de BINDER_WRITE_READ sin un búfer de lectura y luego hacer uso de epoll_wait() o similar para consumir cualquier respuesta posterior. Entonces es crucial que los subprocesos de epoll sean señalizados mediante activación cuando ponen en cola su propio trabajo. De lo contrario, corren el riesgo de esperar indefinidamente a que ocurra un evento que deje su trabajo sin gestionar. Lo que es peor, los comandos posteriores tampoco activarán una reactivación ya que el hilo tiene trabajo pendiente.

*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
  • 2024-02-19 CVE Reserved
  • 2024-02-26 CVE Published
  • 2024-04-21 EPSS Updated
  • 2024-12-19 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"
>= 2.6.29 < 4.19.307
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.29 < 4.19.307"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.29 < 5.4.269
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.29 < 5.4.269"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.29 < 5.10.210
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.29 < 5.10.210"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.29 < 5.15.149
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.29 < 5.15.149"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.29 < 6.1.79
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.29 < 6.1.79"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.29 < 6.6.18
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.29 < 6.6.18"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.29 < 6.7.6
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.29 < 6.7.6"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 2.6.29 < 6.8
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.29 < 6.8"
en
Affected