CVE-2026-89729
Published: September 15, 2026Last modified: September 28, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.8 |
| Attack Vector | ADJACENT_NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Vulnerable (6.1.182-r0) |
| 25 LTS | linux-lts | Fixed (6.12.111-r0) | |
| Stream | linux-lts | Fixed (6.18.53-r0) |
References
- https://git.kernel.org/stable/c/1c0463f0f028801a933f090cd2695f132635b374
- https://git.kernel.org/stable/c/4145aa149a32e4b35d5d47e380d0c6c438b4e6fe
- https://git.kernel.org/stable/c/8bf8aaf2f74de64f801eb30bc38927dba1f8e40a
- https://git.kernel.org/stable/c/9f43499ce6458a572b781f6bb46c464ab59fa825
- https://git.kernel.org/stable/c/bc3d72c44bff17688dc5f3e5132a53b51dae0f04
- https://git.kernel.org/stable/c/c5c60260a07e627084e792ea959ab468ccfa4d50
- https://git.kernel.org/stable/c/c92693f3ed099401d0383ef35ca1fe1e6ba033de
- https://git.kernel.org/stable/c/fa95b14198b6c8ea721b4784f466d3c2c2bac83a