CVE-2025-39741

In the Linux kernel, the following vulnerability has been resolved: drm/xe/migrate: don't overflow max copy size With non-page aligned copy, we need to use 4 byte aligned pitch, however the size itself might still be close to our maximum of ~8M, and so the dimensions of the copy can easily exceed the S16_MAX limit of the copy command leading to the following assert: xe 0000:03:00.0: [drm] Assertion `size / pitch <= ((s16)(((u16)~0U) >> 1))` failed! platform: BATTLEMAGE subplatform: 1 graphics: Xe2_HPG 20.01 step A0 media: Xe2_HPM 13.01 step A1 tile: 0 VRAM 10.0 GiB GT: 0 type 1 WARNING: CPU: 23 PID: 10605 at drivers/gpu/drm/xe/xe_migrate.c:673 emit_copy+0x4b5/0x4e0 [xe] To fix this account for the pitch when calculating the number of current bytes to copy. (cherry picked from commit 8c2d61e0e916e077fda7e7b8e67f25ffe0f361fc)
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*

History

19 Oct 2026, 21:10

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: drm/xe/migrate: no desbordar el tamaño máximo de copia Con copia no alineada a página, necesitamos usar un 'pitch' alineado a 4 bytes, sin embargo, el tamaño en sí mismo podría seguir estando cerca de nuestro máximo de ~8M, y así las dimensiones de la copia pueden exceder fácilmente el límite S16_MAX del comando de copia, lo que lleva a la siguiente aserción: xe 0000:03:00.0: [drm] Assertion 'size / pitch <= ((s16)(((u16)~0U) >> 1))' failed! platform: BATTLEMAGE subplatform: 1 graphics: Xe2_HPG 20.01 step A0 media: Xe2_HPM 13.01 step A1 tile: 0 VRAM 10.0 GiB GT: 0 type 1 WARNING: CPU: 23 PID: 10605 at drivers/gpu/drm/xe/xe_migrate.c:673 emit_copy+0x4b5/0x4e0 [xe] Para solucionar esto, tener en cuenta el 'pitch' al calcular el número de bytes actuales a copiar. (cherry picked from commit 8c2d61e0e916e077fda7e7b8e67f25ffe0f361fc)

Information

Published : 2025-09-11 17:15

Updated : 2026-10-19 21:10


NVD link : CVE-2025-39741

Mitre link : CVE-2025-39741

CVE.ORG link : CVE-2025-39741


JSON object : View

Products Affected

linux

  • linux_kernel