SB20260727306 - Memory corruption in Linux kernel input touchscreen driver
Published: July 27, 2026
Security Bulletin ID
SB20260727306
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory corruption (CVE-ID: CVE-2026-64272)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper memory access in the mms114 touchscreen driver when processing touch data packets from MMS134S and MMS136 controllers. A local user can trigger crafted touch event data to cause a denial of service.
The issue affects handling of touch events beyond the first one because 6-byte events are parsed using 8-byte structure indexing.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/112666835071d935fef764aab590339e97216d4a
- https://git.kernel.org/stable/c/75b12874b4172533b9efc349db328cb1a59c3981
- https://git.kernel.org/stable/c/7c00a0787af7164438bdbc97fcae9733cfc58d21
- https://git.kernel.org/stable/c/a6ac4e24c1a8a533bb61035184fdcc7eede4cc8d
- https://git.kernel.org/stable/c/a747c4eb02656afdbd92eea83b88e92715a23977