CVE-2025-22049: fallo de gravedad alta en Linux
LoongArch: Increase ARCH_DMA_MINALIGN up to 16
Publicada el · Actualizada el
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.8epss 0.2%
probabilidad de explotación
0.2%top 89% de las CVE
explotación observada
noninguna fuente lo reporta
In the Linux kernel, the following vulnerability has been resolved:
LoongArch: Increase ARCH_DMA_MINALIGN up to 16
ARCH_DMA_MINALIGN is 1 by default, but some LoongArch-specific devices
(such as APBDMA) require 16 bytes alignment. When the data buffer length
is too small, the hardware may make an error writing cacheline. Thus, it
is dangerous to allocate a small memory buffer for DMA. It's always safe
to define ARCH_DMA_MINALIGN as L1_CACHE_BYTES but unnecessary (kmalloc()
need small memory objects). Therefore, just increase it to 16.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Productos afectados
Linux · LinuxCVEs relacionadas — Linux
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Referencias
https://git.kernel.org/stable/c/1d0def2d1658666ec1f32c9495df60e7411e3c82https://git.kernel.org/stable/c/279ec25c2df49fba1cd9488f2ddd045d9cb2112ehttps://git.kernel.org/stable/c/4103cfe9dcb88010ae4911d3ff417457d1b6a720https://git.kernel.org/stable/c/8b82aea3666f8f2c78f86148d78aea99c46e0f82https://git.kernel.org/stable/c/bfff341cac7c650e6ca8d10503725992f5564d0fhttps://git.kernel.org/stable/c/f39af67f03b564b763b06e44cb960c10a382d54ahttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html