CVE-2026-89450High· 7.0▾ TwilightA flaw was found in the Linux kernel's iommu/tegra241-cmdqv module. A Virtual Machine Manager (VMM) can exploit this vulnerability by providing a virtual Stream ID (vSID) that exceeds the intended 20-bit width of the SID_MATCH field. This …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38.5 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
— → 7
none → high
— → 8.8
none → high
Last analysed / modified upstream
8.8 → 7
7 → 8.8
8.8 → 7
A flaw was found in the Linux kernel's iommu/tegra241-cmdqv module. A Virtual Machine Manager (VMM) can exploit this vulnerability by providing a virtual Stream ID (vSID) that exceeds the intended 20-bit width of the SID_MATCH field. This improper input validation causes the system to incorrectly process the vSID, leading to the aliasing of an unintended Stream ID. This could result in unexpected behavior or security bypasses within the IOMMU.
kernel: iommu/tegra241-cmdqv: Reject a vSID wider than the SID_MATCH field — rated Important by Red Hat. Released 2026-09-11, updated 2026-09-14.
Affected:
No fix planned:
Not affected:
Affected
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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