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CVE-2026-89729

HIGHCVSS 8.8/10EPSS 0.32%

Last modified

CVE-2026-89729 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.32%

25.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 5459ada2b3cd69e6bf1b0c034feb810975d0072b, < 1c0463f0f028801a933f090cd2695f132635b374; >= 5459ada2b3cd69e6bf1b0c034feb810975d0072b, < 4145aa149a32e4b35d5d47e380d0c6c438b4e6fe; >= 5459ada2b3cd69e6bf1b0c034feb810975d0072b, < 8bf8aaf2f74de64f801eb30bc38927dba1f8e40a; >= 5459ada2b3cd69e6bf1b0c034feb810975d0072b, < c5c60260a07e627084e792ea959ab468ccfa4d50; >= 5459ada2b3cd69e6bf1b0c034feb810975d0072b, < fa95b14198b6c8ea721b4784f466d3c2c2bac83a; >= 5459ada2b3cd69e6bf1b0c034feb810975d0072b, < 9f43499ce6458a572b781f6bb46c464ab59fa825; >= 5459ada2b3cd69e6bf1b0c034feb810975d0072b, < bc3d72c44bff17688dc5f3e5132a53b51dae0f04; >= 5459ada2b3cd69e6bf1b0c034feb810975d0072b, < c92693f3ed099401d0383ef35ca1fe1e6ba033de
LinuxLinux4.9

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-89729?
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.
How severe is CVE-2026-89729?
CVE-2026-89729 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.
How do I fix CVE-2026-89729?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST