GHSA-73M7-4M25-PVGH
Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-18 18:31In 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.
{
"affected": [],
"aliases": [
"CVE-2026-90425"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-17T17:17:47Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID\n\ntegra241_vintf_init_vsid() maps a guest vSID to a single physical Stream ID\ntaken from master-\u003estreams[0], and only warns when the device does not have\nexactly one stream. A device with several streams gets only its first one\nmapped, so a guest vSID invalidation cannot reach the others\u0027 ATC and IOTLB\nentries; a device with none makes master-\u003estreams a ZERO_SIZE_PTR, read out\nof bounds.\n\nReject the mapping with -EOPNOTSUPP if master-\u003enum_streams is not one.",
"id": "GHSA-73m7-4m25-pvgh",
"modified": "2026-09-18T18:31:32Z",
"published": "2026-09-17T18:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90425"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0b139ec4641c7d4163d8e345c26cc630e24fa43b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9b37afb2d34d99ec4f8db28134181b5a8ec9a4a5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fb292bfc9be936dade7eef7ec5762de1201983d8"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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