CVE-2026-64275None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: Input: elan_i2c - prevent division by zero and arithmetic underflow The Elan I2C touchpad driver queries the device for its physical dimensions and trace counts to cal…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
Input: elan_i2c - prevent division by zero and arithmetic underflow
The Elan I2C touchpad driver queries the device for its physical dimensions and trace counts to calculate the device resolution and width. However, if the device firmware or device tree provides invalid zero values for x_traces or y_traces, it results in a fatal division-by-zero exception leading to a kernel panic during device probe.
Add checks to ensure these parameters are non-zero before performing the division. If invalid trace values are detected, fall back to a safe default of 1.
Additionally, prevent an arithmetic underflow in the touch reporting logic. Previously, if the calculated or fallback width was smaller than ETP_FWIDTH_REDUCE (90), the subtraction would underflow, resulting in a massive unsigned integer being reported to userspace. Clamp the adjusted width to a minimum of 0 to safely handle small physical dimensions and fallback scenarios.
Completing the probe with safe fallback values ensures the sysfs nodes are created, keeping the firmware update path intact so a recovery firmware can be flashed to the device.
Linux >= 6696777c6506fa52b2a0282121195843ed855be6 < 59d4cc5e7a9785e4bdc9c55273274c6b49d4b58dLinux >= 6696777c6506fa52b2a0282121195843ed855be6 < f6d10af2036d1d4a847a74fe47ebbf93bce3c84cLinux >= 6696777c6506fa52b2a0282121195843ed855be6 < 2f281ff0163a38fdc4cb4061f0c241e643283a5eLinux >= 6696777c6506fa52b2a0282121195843ed855be6 < 8c1db3418a419e788691746b9c47f863c2fd4890Linux >= 6696777c6506fa52b2a0282121195843ed855be6 < feb4866a42ec94764c7eb58012256f6f37664727Linux >= 6696777c6506fa52b2a0282121195843ed855be6 < 01e0317c256c560d8dcce2e9825eb6142ee34611Linux >= 6696777c6506fa52b2a0282121195843ed855be6 < 6bac57d8fe2a077b8a85b4140eeb7999078158ebLinux >= 6696777c6506fa52b2a0282121195843ed855be6 < df2b818fa009c10ff6ba875a1663ff001cda9558Linux 3.19Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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