CVE-2026-89448critical

CVE-2026-89448: fallo crítico en Linux

iommu/vt-d: Force requesting ACS when tboot is enabled

Publicada el · Actualizada el

28Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 9.3epss 0.1%
probabilidad de explotación
0.1%top 97% de las CVE
explotación observada
noninguna fuente lo reporta
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Force requesting ACS when tboot is enabled Currently the conditions of requesting ACS in detect_intel_iommu() don't include tboot, leading to a possible misconfiguration with ACS disabled (e.g. due to user opts) while iommu is later forced on by tboot_force_iommu(). Fix it by checking tboot in detect_intel_iommu().
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Productos afectados
Linux · Linux
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Referencias
https://git.kernel.org/stable/c/45705a6bfdb283f7b3b509010fd617b72f942537https://git.kernel.org/stable/c/579eb867d3da63f3b5e32f235925e1daa7ec70d0https://git.kernel.org/stable/c/607432b2618b61df81134be0ef2562b8300c1216https://git.kernel.org/stable/c/87bc611c6c98a41c00feb7b06b0c297dd141a2aehttps://git.kernel.org/stable/c/aaeb81241e802c86be69394f72d49fde3f861fbb