// For flags

CVE-2025-38429

bus: mhi: ep: Update read pointer only after buffer is written

Severity Score

"-"
*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: ep: Update read pointer only after buffer is written Inside mhi_ep_ring_add_element, the read pointer (rd_offset) is updated
before the buffer is written, potentially causing race conditions where
the host sees an updated read pointer before the buffer is actually
written. Updating rd_offset prematurely can lead to the host accessing
an uninitialized or incomplete element, resulting in data corruption. Invoke the buffer write before updating rd_offset to ensure the element
is fully written before signaling its availability.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bus: mhi: ep: Actualizar el puntero de lectura solo después de escribir en el búfer. Dentro de mhi_ep_ring_add_element, el puntero de lectura (rd_offset) se actualiza antes de escribir en el búfer, lo que podría causar condiciones de ejecución donde el host ve un puntero de lectura actualizado antes de que se escriba en el búfer. Actualizar rd_offset prematuramente puede provocar que el host acceda a un elemento no inicializado o incompleto, lo que resulta en corrupción de datos. Invoque la escritura en el búfer antes de actualizar rd_offset para garantizar que el elemento esté completamente escrito antes de indicar su disponibilidad.

*Credits: N/A
CVSS Scores
Attack Vector
-
Attack Complexity
-
Privileges Required
-
User Interaction
-
Scope
-
Confidentiality
-
Integrity
-
Availability
-
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2025-04-16 CVE Reserved
  • 2025-07-25 CVE Published
  • 2025-07-28 CVE Updated
  • 2025-07-31 EPSS 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 < 6.6.95
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.6.95"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.19 < 6.12.35
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.12.35"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.19 < 6.15.4
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.15.4"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.19 < 6.16
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.19 < 6.16"
en
Affected