UBUNTU-CVE-2026-46034

In the Linux kernel, the following vulnerability has been resolved: vfio/cdx: Fix NULL pointer dereference in interrupt trigger path Add validation to ensure MSI is configured before accessing cdxirqs array in vfiocdxsetmsitrigger. Without this check, userspace can trigger a NULL pointer...

CVE-2026-46036

The CVE covers a race in the Linux kernel vfio/cdx driver where concurrent VFIO_DEVICE_SET_IRQS ioctls can observe inconsistent state of config_msi and cdx_irqs, leading to use-after-free of the cdx_irqs array. A per-device mutex (cdx_irqs_lock) is added to struct vfio_cdx_device and is acquired ...

CVE-2026-46036 vfio/cdx: Serialize VFIO_DEVICE_SET_IRQS with a per-device mutex

In the Linux kernel, the following vulnerability has been resolved: vfio/cdx: Serialize VFIODEVICESETIRQS with a per-device mutex vfiocdxsetmsitrigger reads vdev-configmsi and operates on the vdev-cdxirqs array based on its value, but provides no serialization against concurrent VFIODEVICESETIRQS...

EUVD-2026-32415

In the Linux kernel, the following vulnerability has been resolved: vfio/cdx: Fix NULL pointer dereference in interrupt trigger path Add validation to ensure MSI is configured before accessing cdxirqs array in vfiocdxsetmsitrigger. Without this check, userspace can trigger a NULL pointer...

CVE-2026-46034

CVE-2026-46034 affects the Linux kernel VFIO/PCI MSI handling: a NULL pointer dereference can occur in vfio_cdx_set_msi_trigger() if interrupts are triggered before MSIs are configured. The openSUSE Tumbleweed OpenSUSE-SU-2026:10954-1 advisory documents the fix in kernel-devel-7.0.11-1.1, noting ...

CVE-2026-46034

In the Linux kernel, the following vulnerability has been resolved: vfio/cdx: Fix NULL pointer dereference in interrupt trigger path Add validation to ensure MSI is configured before accessing cdxirqs array in vfiocdxsetmsitrigger. Without this check, userspace can trigger a NULL pointer...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the vfio/cdx driver’s failure to verify whether MSI is configured during the interrupt trigger...

CVE-2026-46034: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: vfio/cdx: Fix NULL pointer dereference in interrupt trigger path Add validation to ensure MSI is configured before accessing cdxirqs array in vfiocdxsetmsitrigger. Without this check, userspace can trigger a NULL pointer...

PT-2026-43901

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.11-1.1 Description A NULL pointer dereference exists in the interrupt trigger path of the vfio/cdx module. The vfio cdx set msi trigger function fails to validate if Message Signaled Interrupts MSI are...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the lack of serialization in the VFIODEVICESETIRQS operation within the vfio/cdx driver. This...

CVE-2026-46036: Use After Free

In the Linux kernel, the following vulnerability has been resolved: vfio/cdx: Serialize VFIODEVICESETIRQS with a per-device mutex vfiocdxsetmsitrigger reads vdev-configmsi and operates on the vdev-cdxirqs array based on its value, but provides no serialization against concurrent VFIODEVICESETIRQS...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iommufd: Make sure to zero vfioiommutype1info before copying it to the user. A zero initialization was missed here. Most of the struct is filled using a copyfromuser function; however, the minsz parameter for that copy is 8 bytes...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: vfio/xe: Reorganized the init process to separate migration from reset operations. Attempting to perform a reset on VF devices that do not support migration leads to the following issues: BUG: Unable to handle a page fault for...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: vfio: Fixed NULL pointer dereferencing caused by uninitialized group-iommufd. group-iommufd is not initialized for the iommufdctxput function. 20018.331541 BUG: NULL pointer dereferencing in the kernel, address: 00000000000000...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Fixed a double-free in the dma-buf feature. The error path through vfiopcicorefeaturedmabuf ignores its own advice to only use dmabufput after dmabufexport. Instead, it proceeds through the entire unwind chain. In the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ice: ptp: do not emit a WARN when controlling PF is unavailable. In VFIO passthrough setups, it is possible to only pass through a PF that does not own the source timer. In such cases, the PTP controlling PF adapter-ctrlpf is nev...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021539)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021539 advisory. In the Linux kernel, the following vulnerability has been resolved: vfio/type1: prevent underflow of lockedvm via exec When a vfio container is preserved across exec...

SUSE CVE-2026-43346

In the Linux kernel, the following vulnerability has been resolved: ice: ptp: don't WARN when controlling PF is unavailable In VFIO passthrough setups, it is possible to pass through only a PF which doesn't own the source timer. In that case the PTP controlling PF adapter-ctrlpf is never...

CVE-2026-43346

In the Linux kernel, the following vulnerability has been resolved: ice: ptp: don't WARN when controlling PF is unavailable In VFIO passthrough setups, it is possible to pass through only a PF which doesn't own the source timer. In that case the PTP controlling PF adapter-ctrlpf is never...

CVE-2026-43346

In the Linux kernel, the following vulnerability has been resolved: ice: ptp: don't WARN when controlling PF is unavailable In VFIO passthrough setups, it is possible to pass through only a PF which doesn't own the source timer. In that case the PTP controlling PF adapter-ctrlpf is never...