CVE-2026-89729

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux5459ada2b3cd69e6bf1b0c034feb810975d0072b < fa95b14198b6c8ea721b4784f466d3c2c2bac83aaffected
LinuxLinux5459ada2b3cd69e6bf1b0c034feb810975d0072b < 9f43499ce6458a572b781f6bb46c464ab59fa825affected
LinuxLinux5459ada2b3cd69e6bf1b0c034feb810975d0072b < bc3d72c44bff17688dc5f3e5132a53b51dae0f04affected
LinuxLinux5459ada2b3cd69e6bf1b0c034feb810975d0072b < c92693f3ed099401d0383ef35ca1fe1e6ba033deaffected
LinuxLinux4.9affected
LinuxLinux0 < 4.9unaffected
LinuxLinux6.12.109 <= 6.12.*unaffected
LinuxLinux6.18.50 <= 6.18.*unaffected
LinuxLinux7.2.4 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References