CVE-2025-21778

CVE-2025-21778 : In the Linux kernel, a fault occurs when mmap() is used on a trace ring buffer attached to reserve_mem. The mapping relied on virt_to_page() which does not work with vmap’d memory, causing a kernel oops during access. The fix disables mmap() for such persistent ring buffers (rese...

CVE-2021-47531 drm/msm: Fix mmap to include VM_IO and VM_DONTDUMP

In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix mmap to include VMIO and VMDONTDUMP In commit 510410bfc034 "drm/msm: Implement mmap as GEM object function" we switched to a new/cleaner method of doing things. That's good, but we missed a little bit. Before that...