CVE-2026-89729 is a vulnerability in Linux Kernel
Published on September 11, 2026
HID: sensor-hub: Fix out-of-bounds write in sensor_hub_get_feature
In the Linux kernel, the following vulnerability has been resolved:
HID: sensor-hub: Fix out-of-bounds write in sensor_hub_get_feature
sensor_hub_get_feature() clamps its return value to the caller's buffer
size, but the copy loop still copies field->report_size / 8 bytes for
each report value. A malicious HID descriptor can advertise a large
feature field size while an IIO caller supplies a small stack buffer,
such as a single s32, causing an out-of-bounds write.
HID core stores parsed report values in __s32 slots and clamps extracted
values to 32 bits. Reject feature fields that require more than one slot
per value, guard the total byte count calculation, and clamp each
per-value copy to the remaining caller buffer.
Products Associated with CVE-2026-89729
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Affected Versions
Linux:- Version 5459ada2b3cd69e6bf1b0c034feb810975d0072b and below fa95b14198b6c8ea721b4784f466d3c2c2bac83a is affected.
- Version 5459ada2b3cd69e6bf1b0c034feb810975d0072b and below 9f43499ce6458a572b781f6bb46c464ab59fa825 is affected.
- Version 5459ada2b3cd69e6bf1b0c034feb810975d0072b and below bc3d72c44bff17688dc5f3e5132a53b51dae0f04 is affected.
- Version 5459ada2b3cd69e6bf1b0c034feb810975d0072b and below c92693f3ed099401d0383ef35ca1fe1e6ba033de is affected.
- Version 4.9 is affected.
- Before 4.9 is unaffected.
- Version 6.12.109, <= 6.12.* is unaffected.
- Version 6.18.50, <= 6.18.* is unaffected.
- Version 7.2.4, <= 7.2.* is unaffected.
- Version 7.3-rc1, <= * is unaffected.