CVE-2025-21778

CVE-2025-21778 (Linux kernel) involves a crash when mmap() is used on a persistent tracing ring buffer that is attached to reserve_mem. The root cause is that the code maps ring buffer pages using virt_to_page() on memory that is vmap()’d, which is invalid for that memory type and can trigger a p...

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...