CVE-2026-89729
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 5459ada2b3cd69e6bf1b0c034feb810975d0072b < fa95b14198b6c8ea721b4784f466d3c2c2bac83a | affected |
| Linux | Linux | 5459ada2b3cd69e6bf1b0c034feb810975d0072b < 9f43499ce6458a572b781f6bb46c464ab59fa825 | affected |
| Linux | Linux | 5459ada2b3cd69e6bf1b0c034feb810975d0072b < bc3d72c44bff17688dc5f3e5132a53b51dae0f04 | affected |
| Linux | Linux | 5459ada2b3cd69e6bf1b0c034feb810975d0072b < c92693f3ed099401d0383ef35ca1fe1e6ba033de | affected |
| Linux | Linux | 4.9 | affected |
| Linux | Linux | 0 < 4.9 | unaffected |
| Linux | Linux | 6.12.109 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.50 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.4 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/fa95b14198b6c8ea721b4784f466d3c2c2bac83a
- https://git.kernel.org/stable/c/9f43499ce6458a572b781f6bb46c464ab59fa825
- https://git.kernel.org/stable/c/bc3d72c44bff17688dc5f3e5132a53b51dae0f04
- https://git.kernel.org/stable/c/c92693f3ed099401d0383ef35ca1fe1e6ba033de
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