CVE-2026-46156

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the LoongArch architecture where the loongson gpu fixup dma hang() function may fail to handle certain switch cases. This can lead to an Address Detection Error (ADE) because the readl(crtc reg) function may access a random memory address. This occurs when the system uses a discrete GPU, as the device address is incorrectly calculated using base+PCI DEVICE ID where base is derived from pdev->devfn+1.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.