// For flags

CVE-2024-26963

usb: dwc3-am62: fix module unload/reload behavior

Severity Score

"-"
*CVSS v-

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:

usb: dwc3-am62: fix module unload/reload behavior

As runtime PM is enabled, the module can be runtime
suspended when .remove() is called.

Do a pm_runtime_get_sync() to make sure module is active
before doing any register operations.

Doing a pm_runtime_put_sync() should disable the refclk
so no need to disable it again.

Fixes the below warning at module removel.

[ 39.705310] ------------[ cut here ]------------
[ 39.710004] clk:162:3 already disabled
[ 39.713941] WARNING: CPU: 0 PID: 921 at drivers/clk/clk.c:1090 clk_core_disable+0xb0/0xb8

We called of_platform_populate() in .probe() so call the
cleanup function of_platform_depopulate() in .remove().
Get rid of the now unnnecessary dwc3_ti_remove_core().
Without this, module re-load doesn't work properly.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: dwc3-am62: corrige el comportamiento de descarga/recarga del módulo. Como el PM en tiempo de ejecución está habilitado, el tiempo de ejecución del módulo se puede suspender cuando se llama a .remove(). Realice pm_runtime_get_sync() para asegurarse de que el módulo esté activo antes de realizar cualquier operación de registro. Hacer pm_runtime_put_sync() debería deshabilitar refclk, por lo que no es necesario deshabilitarlo nuevamente. Corrige la siguiente advertencia al eliminar el módulo. [39.705310] ------------[ cortar aquí ]------------ [ 39.710004] clk:162:3 ya deshabilitado [ 39.713941] ADVERTENCIA: CPU: 0 PID : 921 en drivers/clk/clk.c:1090 clk_core_disable+0xb0/0xb8 Llamamos a of_platform_populate() en .probe(), así que llame a la función de limpieza of_platform_depopulate() en .remove(). Deshágase del ahora innecesario dwc3_ti_remove_core(). Sin esto, la recarga del módulo no funciona correctamente.

*Credits: N/A
CVSS Scores
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Privileges Required
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Scope
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Confidentiality
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Availability
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* 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
  • 2024-05-01 CVE Published
  • 2024-05-01 EPSS Updated
  • 2024-08-02 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"
>= 5.19 < 6.1.84
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.1.84"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.19 < 6.6.24
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.6.24"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.19 < 6.7.12
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.7.12"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.19 < 6.8.3
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.8.3"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.19 < 6.9
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.9"
en
Affected