CVE-2026-90426

CVE-2026-90426 affects the Linux kernel 's tegra241-cmdqv IOMMU driver. In tegra241_cmdqv_remove(), VINTFs are torn down before the error IRQ is freed, creating a window where the ISR can read a stale cmdqv->vintfs[0] slot and pass a NULL or freed pointer to tegra241_vintf0_handle_error(), cau...

CVE-2026-90426 iommu/tegra241-cmdqv: Free the error IRQ before tearing down VINTFs

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Free the error IRQ before tearing down VINTFs tegra241cmdqvremove tears each VINTF down first, then calls freeirq. Tearing a VINTF down frees vintf0 and clears cmdqv-vintfs0. An error in that window makes...

CVE-2026-90426 iommu/tegra241-cmdqv: Free the error IRQ before tearing down VINTFs

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Free the error IRQ before tearing down VINTFs tegra241cmdqvremove tears each VINTF down first, then calls freeirq. Tearing a VINTF down frees vintf0 and clears cmdqv-vintfs0. An error in that window makes...

CVE-2026-90425 iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID tegra241vintfinitvsid maps a guest vSID to a single physical Stream ID taken from master-streams0, and only warns when the device does not have exactly one stream. A...

EUVD-2026-82086

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID tegra241vintfinitvsid maps a guest vSID to a single physical Stream ID taken from master-streams0, and only warns when the device does not have exactly one stream. A...

EUVD-2026-82085

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Fix VINTF0 leak on the init-failure path tegra241cmdqvinitstructures allocates VINTF0 with kzallocobj, inits it, and preallocates its logical VCMDQs. Two of its error paths leak. When tegra241cmdqvinitvintf...

CVE-2026-90424

This Linux kernel vulnerability affects the Tegra241 CMDQV IOMMU driver (iommu/tegra241-cmdqv). The root cause is a memory leak of the VINTF0 structure on two initialization-failure paths in tegra241_cmdqv_init_structures(). In the first path, a failure in tegra241_cmdqv_init_vintf() returns befo...

CVE-2026-90425

CVE-2026-90425 affects the Linux kernel's iommu/tegra241-cmdqv subsystem (NVIDIA Tegra 241 IOMMU). The vulnerable function tegra241_vintf_init_vsid() maps a guest vSID to a single physical Stream ID taken from master->streams[0]. When a device has multiple streams , only the first is mapped, s...

CVE-2026-90425 iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID tegra241vintfinitvsid maps a guest vSID to a single physical Stream ID taken from master-streams0, and only warns when the device does not have exactly one stream. A...

CVE-2026-90424 iommu/tegra241-cmdqv: Fix VINTF0 leak on the init-failure path

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Fix VINTF0 leak on the init-failure path tegra241cmdqvinitstructures allocates VINTF0 with kzallocobj, inits it, and preallocates its logical VCMDQs. Two of its error paths leak. When tegra241cmdqvinitvintf...

CVE-2026-90424 iommu/tegra241-cmdqv: Fix VINTF0 leak on the init-failure path

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Fix VINTF0 leak on the init-failure path tegra241cmdqvinitstructures allocates VINTF0 with kzallocobj, inits it, and preallocates its logical VCMDQs. Two of its error paths leak. When tegra241cmdqvinitvintf...

CVE-2026-90430: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Publish an LVCMDQ only after it is fully initialized tegra241vintfinitlvcmdq stores the freshly allocated vcmdq pointer to the vintf-lvcmdqs array, before tegra241vcmdqallocsmmucmdq builds the vcmdq-cmdq. Th...

CVE-2026-90429: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Synchronize the error ISR against VINTF deinit A user VINTF is torn down by tegra241cmdqvdeinitvintf, which runs from the destroy callback and from the init-failure unwind in the alloc handler. It clears the...

CVE-2026-90426: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Free the error IRQ before tearing down VINTFs tegra241cmdqvremove tears each VINTF down first, then calls freeirq. Tearing a VINTF down frees vintf0 and clears cmdqv-vintfs0. An error in that window makes...

CVE-2026-90424: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Fix VINTF0 leak on the init-failure path tegra241cmdqvinitstructures allocates VINTF0 with kzallocobj, inits it, and preallocates its logical VCMDQs. Two of its error paths leak. When tegra241cmdqvinitvintf...

CVE-2026-90427: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Don't fall back to a freed smmu after devmkrealloc tegra241cmdqvprobe uses devmkrealloc to grow @smmu into the larger tegra241cmdqv, which frees the original @smmu once it relocates. A failure after that...

CVE-2026-90425: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID tegra241vintfinitvsid maps a guest vSID to a single physical Stream ID taken from master-streams0, and only warns when the device does not have exactly one stream. A...

CVE-2026-90428: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs tegra241cmdqvprobe requests the error IRQ before it has allocated the cmdqv-vintfs array and set cmdqv-numvintfs. A CMDQV left enabled with a latched error...

Linux Distros Unpatched Vulnerability : CVE-2026-89450

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iommu/tegra241-cmdqv: Reject a vSID wider than the SIDMATCH field tegra241vintfinitvsid programs the guest-provided vSID into SIDMATCH, whose VIRTSID field span...

CVE-2026-89450

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 SIDMATCH field. This improper input validation causes the system to incorrectly...