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CVE Record

CVE-2025-68777: Input: ti_am335x_tsc - fix off-by-one error in wire_order validation

In the Linux kernel, the following vulnerability has been resolved: Input: ti_am335x_tsc - fix off-by-one error in wire_order validation The current validation 'wire_order[i] > ARRAY_SIZE(config_pins)' allows wire_order[i] to equal ARRAY_SIZE(config_pins), which causes out-of-bounds access when used as index in 'config_pins[wire_order[i]]'. Since config_pins has 4 elements (indices 0-3), the valid range for wire_order should be 0-3. Fix the off-by-one error by using >= instead of > in the validation check.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue affects validation in the TI AM335x touchscreen input driver. A bad wire_order value can pass validation and cause an out-of-bounds array access. The available sources do not provide CVSS, impact severity, or evidence of active exploitation, so urgency depends on whether affected embedded Linux systems use this driver.

Executive priority

Do not treat this as an internet-wide emergency based on current evidence. Prioritize validation in embedded Linux and appliance fleets, especially TI AM335x-based devices, then patch through normal kernel or firmware maintenance once vendor-fixed builds are available.

Technical view

The ti_am335x_tsc driver allowed wire_order[i] to equal ARRAY_SIZE(config_pins). Because config_pins has four valid indexes, 0 through 3, that value can be used as an invalid index. The kernel fix changes the check from greater-than to greater-than-or-equal validation across stable branches.

Likely exposure

Most likely exposure is Linux-based embedded or hardware-specific systems using the TI AM335x touchscreen controller driver. General-purpose servers and desktops are less likely to be exposed unless this driver is present and reachable through their kernel configuration or device firmware.

Exploitation context

The provided bundle does not show CISA KEV listing, public exploitation, exploit maturity, or a CVSS score. Treat this as a memory-safety kernel bug with unclear practical exploitability until vendor advisories or downstream distribution guidance provide more detail.

Researcher notes

The core issue is an off-by-one bounds check in wire_order validation before indexing config_pins. Sources identify fixed stable commits but do not state attacker prerequisites, reachable configuration paths, crash behavior, privilege impact, or exploitability. Further assessment should focus on driver inclusion and downstream patch status.

Mitigation direction

  • Update to a kernel or vendor firmware containing the stable ti_am335x_tsc fix.
  • Track Linux distribution advisories for backported packages covering CVE-2025-68777.
  • Prioritize embedded products that include TI AM335x touchscreen hardware or this driver.
  • Request vendor confirmation for appliances where kernel configuration is not visible.

Validation and detection

  • Inventory Linux kernel versions across affected embedded and appliance fleets.
  • Confirm whether the ti_am335x_tsc driver is built, loaded, or included in firmware.
  • Verify the source or package includes the >= wire_order validation fix.
  • Map findings to the listed stable kernel commits or downstream vendor advisories.
Prepared
Confidence
medium
Sources
9

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
0ADP providers
8Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxbb76dc09ddfc135c6c5e8eb7d3c583bfa8bdd439, bb76dc09ddfc135c6c5e8eb7d3c583bfa8bdd439, bb76dc09ddfc135c6c5e8eb7d3c583bfa8bdd439, bb76dc09ddfc135c6c5e8eb7d3c583bfa8bdd439, bb76dc09ddfc135c6c5e8eb7d3c583bfa8bdd439, bb76dc09ddfc135c6c5e8eb7d3c583bfa8bdd439, bb76dc09ddfc135c6c5e8eb7d3c583bfa8bdd439unaffected
LinuxLinux3.11, 0, 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.64, 6.18.3, 6.19affected
Weakness

CWE details

No CWE listed

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