CVE-2026-58809 · Infrastructure
NO FIX YET
A missing bounds check in the smmu_domain_config_s1 function of the arm-smmu-v3 IOMMU driver allows an out-of-bounds write. A local attacker with system-level execution could escalate privileges.
first public Nov 10, 2026 · 1 source
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Systems running a kernel with the arm-smmu-v3 driver (ARM systems using an SMMUv3 IOMMU) are in scope. The sources do not list affected kernel versions or whether the driver is built in by default. Systems without ARM SMMUv3 hardware are likely unaffected.
Not affected if no-smmuv3-hardware
Who cares arm64, iommu, linux-kernel
Unknown from the sources.
No fix yet, per the sources.
In smmu_domain_config_s1 of arm-smmu-v3.c, there is a possible OOB Write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
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