iio: imu: adis16550: fix stack leak in trigger handler

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-63966
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-19 16:17:15 UTC
Updated2026-07-19 16:17:15 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.001980000 probability, percentile 0.097880000 (date 2026-07-20)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e4570f4bb231f01e32d44fd38841665f340d6914 ce582b22dd2ff15ac99101c22ec1559d1febe2ff git Not specified
CNA Linux Linux affected e4570f4bb231f01e32d44fd38841665f340d6914 c2c255444392872cbbf46d640cb3a938e8000309 git Not specified
CNA Linux Linux affected e4570f4bb231f01e32d44fd38841665f340d6914 474f8928d50b09f7dcf507049f08732640b88b49 git Not specified
CNA Linux Linux affected 6.15 Not specified
CNA Linux Linux unaffected 6.15 semver Not specified
CNA Linux Linux unaffected 6.18.35 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.12 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c2c255444392872cbbf46d640cb3a938e8000309 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/474f8928d50b09f7dcf507049f08732640b88b49 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ce582b22dd2ff15ac99101c22ec1559d1febe2ff 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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