// For flags

CVE-2022-48660

gpiolib: cdev: Set lineevent_state::irq after IRQ register successfully

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:

gpiolib: cdev: Set lineevent_state::irq after IRQ register successfully

When running gpio test on nxp-ls1028 platform with below command
gpiomon --num-events=3 --rising-edge gpiochip1 25
There will be a warning trace as below:
Call trace:
free_irq+0x204/0x360
lineevent_free+0x64/0x70
gpio_ioctl+0x598/0x6a0
__arm64_sys_ioctl+0xb4/0x100
invoke_syscall+0x5c/0x130
......
el0t_64_sync+0x1a0/0x1a4
The reason of this issue is that calling request_threaded_irq()
function failed, and then lineevent_free() is invoked to release
the resource. Since the lineevent_state::irq was already set, so
the subsequent invocation of free_irq() would trigger the above
warning call trace. To fix this issue, set the lineevent_state::irq
after the IRQ register successfully.

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: gpiolib: cdev: configure lineevent_state::irq después del registro IRQ con éxito Al ejecutar la prueba gpio en la plataforma nxp-ls1028 con el siguiente comando gpiomon --num-events=3 --rising-edge gpiochip1 25 Habrá un seguimiento de advertencia como se muestra a continuación: Seguimiento de llamada: free_irq+0x204/0x360 lineevent_free+0x64/0x70 gpio_ioctl+0x598/0x6a0 __arm64_sys_ioctl+0xb4/0x100 invoke_syscall+0x5c/0x130 ...... 0x1a0/0x1a4 El motivo de este problema es que falló la llamada a la función request_threaded_irq() y luego se invoca lineevent_free() para liberar el recurso. Dado que lineevent_state::irq ya estaba configurado, la invocación posterior de free_irq() activaría el seguimiento de llamada de advertencia anterior. Para solucionar este problema, configure lineevent_state::irq después del registro IRQ correctamente.

*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
  • 2024-04-28 CVE Published
  • 2024-05-01 EPSS Updated
  • 2024-08-03 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"
 >= 5.9 < 5.10.146
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 5.10.146"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 5.15.71
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 5.15.71"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 5.19.12
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 5.19.12"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 6.0
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.0"
en
Affected