Skip to main content

Boteraser | Website and Server Security Solutions

🛡️ CVE-2026-64275 — kernel

🟡 CVSS 5.5 — Medium ✅ No Known Exploit NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Input: elan_i2c - prevent division by zero and arithmetic underflow

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.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: None.
  • Availability impact: High — total loss, or loss the attacker controls.

Affected software

CVE-2026-64275 is recorded against 2 packages.

  • kernel (from 6.19.0 up to 7.1.4)
  • linux-kernel (from 6.19 up to 7.1.4)

Timeline and source

Published on 25 July 2026 and last revised on 18 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

Details

Severity Medium
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2026-07-25
Updated 2026-08-20
Modified 2026-08-18

Affected Packages

Software From version Fixed in
kernel 6.19.0 7.1.4
linux-kernel 6.19 7.1.4

References

Similar Threats

Vulnerability Monitoring

Track new vulnerabilities in kernel

CVE-2026-64275 is rated CVSS 5.5 Medium. BotEraser monitors your WordPress installation and notifies you when software you use appears in our vulnerability database.

Set Up Free Alerts →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

Browse related advisories

All advisoriesCVECVE 2026
✓