Bug 2429055 (CVE-2025-68777)

Summary: CVE-2025-68777 kernel: Input: ti_am335x_tsc - fix off-by-one error in wire_order validation
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2026-01-13 16:03:32 UTC 
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.
Comment 1 Jon Moroney 2026-01-15 03:11:25 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026011359-CVE-2025-68777-2073@gregkh/T