Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iio: imu: adis16550: fix stack leak in trigger handler adis16550_trigger_handler() declares the scan data array on the stack without initializing it. The memcpy() at the bottom fills only the first 28 bytes (TEMP + 6 channels of GYRO/ACCEL data), and iio_push_to_buffers_with_timestamp() writes the s64 timestamp at the 8-byte-aligned offset 32. Bytes 28-31 remain uninitialized stack data which leaks to userspace on ever trigger. Fix this all by just zero-initializing the structure on the stack.
References
- https://git.kernel.org/stable/c/474f8928d50b09f7dcf507049f08732640b88b49
- https://git.kernel.org/stable/c/c2c255444392872cbbf46d640cb3a938e8000309
- https://git.kernel.org/stable/c/ce582b22dd2ff15ac99101c22ec1559d1febe2ff
FAQ
What is CVE-2026-63966?
CVE-2026-63966 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: iio: imu: adis16550: fix stack leak in trigger handler adis16550_trigger_handler() declares the scan data array on the stack witho...
How severe is CVE-2026-63966?
CVSS scoring is not yet available for CVE-2026-63966. Check NVD for updates.
Is there a patch for CVE-2026-63966?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.