comedi

  1. CVE-2025-38481: Linux Comedi Buffer Fix in Azure Linux

    The Linux kernel vulnerability tracked as CVE-2025-38481 — a bug in the comedi subsystem that causes the COMEDI_INSNLIST ioctl to allocate an unreasonably large kernel buffer when given a maliciously large n_insns value — has been fixed upstream by adding a limit (MAX_INSNS) and by refusing...
  2. CVE-2025-38480: Linux COMEDI Kernel Fix for Uninitialized Data

    The Linux kernel vulnerability tracked as CVE-2025-38480 has been published: a subtle correctness bug in the COMEDI subsystem where the helper function insn_rw_emulate_bits could read uninitialized data when presented with an instruction that specifies zero samples. Upstream kernel maintainers...
  3. CVE-2025-38483: Linux COMEDI das16m1 IRQ Bound Check Patch

    The Linux kernel CVE-2025-38483 disclosure fixes a small but meaningful defensive-programming error in the COMEDI das16m1 driver that could lead to an out‑of‑bounds left-shift when a user-supplied IRQ number is used without sanity checks. The upstream patch enforces explicit bounds on the...
  4. CVE-2025-38478 Explained: Azure Linux Attestation and the comedi Bug

    Microsoft’s terse advisory that “Azure Linux includes this open‑source library and is therefore potentially affected” is accurate but incomplete as an operational statement — it is a product‑level attestation, not proof that every other Microsoft product is free of the same vulnerable component...
  5. CVE-2025-68257 Hardened Linux COMEDI compat ioctls to prevent NULL pointer crash

    A newly assigned CVE, CVE-2025-68257, closes a subtle but dangerous gap in the Linux kernel’s COMEDI driver by ensuring compat ioctl handlers verify whether a device is actually attached before performing operations — a change that eliminates a reproducible NULL-pointer kernel crash reported by...