High severity · published Sep 11, 2026
CVE-2026-89729
HID: sensor-hub: Fix out-of-bounds write in sensor_hub_get_feature
8.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
5459ada2b3cd69e6bf1b0c034feb810975d0072b before 1c0463f0f028801a933f090cd2695f132635b374; 5459ada2b3cd69e6bf1b0c034feb810975d0072b before 4145aa149a32e4b35d5d47e380d0c6c438b4e6fe; 5459ada2b3cd69e6bf1b0c034feb810975d0072b before 8bf8aaf2f74de64f801eb30bc38927dba1f8e40a; 5459ada2b3cd69e6bf1b0c034feb810975d0072b before c5c60260a07e627084e792ea959ab468ccfa4d50; 5459ada2b3cd69e6bf1b0c034feb810975d0072b before fa95b14198b6c8ea721b4784f466d3c2c2bac83a; 5459ada2b3cd69e6bf1b0c034feb810975d0072b before 9f43499ce6458a572b781f6bb46c464ab59fa825; +3 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89729
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-89729
git.kernel.org
https://git.kernel.org/stable/c/1c0463f0f028801a933f090cd2695f132635b374
git.kernel.org
https://git.kernel.org/stable/c/4145aa149a32e4b35d5d47e380d0c6c438b4e6fe
git.kernel.org
https://git.kernel.org/stable/c/8bf8aaf2f74de64f801eb30bc38927dba1f8e40a
git.kernel.org
https://git.kernel.org/stable/c/9f43499ce6458a572b781f6bb46c464ab59fa825
git.kernel.org
https://git.kernel.org/stable/c/bc3d72c44bff17688dc5f3e5132a53b51dae0f04
git.kernel.org
https://git.kernel.org/stable/c/c5c60260a07e627084e792ea959ab468ccfa4d50
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