CVE-2026-90425
iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID tegra241_vintf_init_vsid() maps a guest vSID to a single physical Stream ID taken from master->streams[0], and only warns when the device does not have exactly one stream. A device with several streams gets only its first one mapped, so a guest vSID invalidation cannot reach the others' ATC and IOTLB entries; a device with none makes master->streams a ZERO_SIZE_PTR, read out of bounds. Reject the mapping with -EOPNOTSUPP if master->num_streams is not one.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
4dc0d12474f9d4833c3dd96b73d61e406d3f5dc7 < 9b37afb2d34d99ec4f8db28134181b5a8ec9a4a5 4dc0d12474f9d4833c3dd96b73d61e406d3f5dc7 < 0b139ec4641c7d4163d8e345c26cc630e24fa43b 4dc0d12474f9d4833c3dd96b73d61e406d3f5dc7 < fb292bfc9be936dade7eef7ec5762de1201983d8
Linux / Linux
6.17