fbdev

The Linux kernel entry for CVE-2026-23236 closes a small but important memory‑handling bug in the legacy fbdev driver for the SMSC UFX USB framebuffer (smscufx): the UFX_IOCTL_REPORT_DAMAGE ioctl did not copy user-provided data into kernel memory safely and instead directly referenced user...

Microsoft’s short public attestation that “Azure Linux includes this open‑source library and is therefore potentially affected” is accurate — but it is a product‑scoped inventory statement, not proof that no other Microsoft product can include the same vulnerable kernel code. Background /...

A recently published Linux kernel security entry — CVE-2025-40322 — addresses a bounds‑checking defect in the legacy framebuffer (fbdev) text‑blitting code that could let a crafted character value cause an out‑of‑bounds read from the built‑in font table; the upstream fix clamps the computed...

A small but important patch landed in the Linux kernel this week to stop a framebuffer text‑rendering routine from writing past its allocated vmalloc buffer — a classic bounds‑checking fix that removes a local denial‑of‑service and potential memory‑corruption vector. The upstream change to the...