CVE-2023-52517

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-52517
In the Linux kernel, the following vulnerability has been resolved: spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain Previously the transfer complete IRQ immediately drained to RX FIFO to read any data remaining in FIFO to the RX buffer. This behaviour is correct when dealing with SPI in interrupt mode. However in DMA mode the transfer complete interrupt still fires as soon as all bytes to be transferred have been stored in the FIFO. At that point data in the FIFO still needs to be picked up by the DMA engine. Thus the drain procedure and DMA engine end up racing to read from RX FIFO, corrupting any data read. Additionally the RX buffer pointer is never adjusted according to DMA progress in DMA mode, thus calling the RX FIFO drain procedure in DMA mode is a bug. Fix corruptions in DMA RX mode by draining RX FIFO only in interrupt mode. Also wait for completion of RX DMA when in DMA mode before returning to ensure all data has been copied to the supplied memory buffer.

7.0 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/1f11f4202caf5710204d334fe63392052783876d Patch
https://git.kernel.org/stable/c/36b29974a7ad2ff604c24ad348f940506c7b1209 Patch
https://git.kernel.org/stable/c/4e149d524678431638ff378ef6025e4e89b71097 Patch
https://git.kernel.org/stable/c/bd1ec7f9983b5cd3c77e0f7cda3fa8aed041af2f Patch
https://git.kernel.org/stable/c/1f11f4202caf5710204d334fe63392052783876d Patch
https://git.kernel.org/stable/c/36b29974a7ad2ff604c24ad348f940506c7b1209 Patch
https://git.kernel.org/stable/c/4e149d524678431638ff378ef6025e4e89b71097 Patch
https://git.kernel.org/stable/c/bd1ec7f9983b5cd3c77e0f7cda3fa8aed041af2f Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

13 Jan 2025, 18:54

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.0
CWE CWE-362
First Time Linux
Linux linux Kernel
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/1f11f4202caf5710204d334fe63392052783876d - () https://git.kernel.org/stable/c/1f11f4202caf5710204d334fe63392052783876d - Patch
References () https://git.kernel.org/stable/c/36b29974a7ad2ff604c24ad348f940506c7b1209 - () https://git.kernel.org/stable/c/36b29974a7ad2ff604c24ad348f940506c7b1209 - Patch
References () https://git.kernel.org/stable/c/4e149d524678431638ff378ef6025e4e89b71097 - () https://git.kernel.org/stable/c/4e149d524678431638ff378ef6025e4e89b71097 - Patch
References () https://git.kernel.org/stable/c/bd1ec7f9983b5cd3c77e0f7cda3fa8aed041af2f - () https://git.kernel.org/stable/c/bd1ec7f9983b5cd3c77e0f7cda3fa8aed041af2f - Patch

21 Nov 2024, 08:39

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/1f11f4202caf5710204d334fe63392052783876d - () https://git.kernel.org/stable/c/1f11f4202caf5710204d334fe63392052783876d -
References () https://git.kernel.org/stable/c/36b29974a7ad2ff604c24ad348f940506c7b1209 - () https://git.kernel.org/stable/c/36b29974a7ad2ff604c24ad348f940506c7b1209 -
References () https://git.kernel.org/stable/c/4e149d524678431638ff378ef6025e4e89b71097 - () https://git.kernel.org/stable/c/4e149d524678431638ff378ef6025e4e89b71097 -
References () https://git.kernel.org/stable/c/bd1ec7f9983b5cd3c77e0f7cda3fa8aed041af2f - () https://git.kernel.org/stable/c/bd1ec7f9983b5cd3c77e0f7cda3fa8aed041af2f -
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: spi: sun6i: corrigió la ejecución entre la finalización de la transferencia DMA RX y el drenaje FIFO RX Anteriormente, la IRQ completa de la transferencia se drenaba inmediatamente a RX FIFO para leer cualquier dato restante en FIFO al búfer RX. Este comportamiento es correcto cuando se trata de SPI en modo de interrupción. Sin embargo, en el modo DMA, la interrupción de transferencia completa aún se activa tan pronto como todos los bytes a transferir se hayan almacenado en el FIFO. En ese momento, el motor DMA todavía debe recoger los datos del FIFO. Por lo tanto, el procedimiento de drenaje y el motor DMA terminan corriendo para leer desde RX FIFO, corrompiendo cualquier lectura de datos. Además, el puntero del búfer RX nunca se ajusta según el progreso de DMA en modo DMA, por lo que llamar al procedimiento de drenaje FIFO de RX en modo DMA es un error. Corrija corrupciones en el modo DMA RX drenando RX FIFO solo en modo de interrupción. Espere también a que se complete RX DMA cuando esté en modo DMA antes de regresar para asegurarse de que todos los datos se hayan copiado en el búfer de memoria suministrado.

02 Mar 2024, 22:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-03-02 22:15

Updated : 2025-01-13 18:54

NVD link : CVE-2023-52517

Mitre link : CVE-2023-52517

CVE.ORG link : CVE-2023-52517

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')