CVE-2026-80569 Affecting kernel-uek-doc package, versions <0:5.15.0-325.220.5.el8uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.12% (2nd percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELUEKDOC-20649226
  • published8 Oct 2026
  • disclosed26 Aug 2026

Introduced: 26 Aug 2026

CVE-2026-80569  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-uek-doc to version 0:5.15.0-325.220.5.el8uek or higher.
This issue was patched in ELSA-2026-500377.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-doc package and not the kernel-uek-doc package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

Input: synaptics-rmi4 - bound the F54 report size to the allocated buffer

rmi_f54_work() reads a diagnostics report from the device into f54->report_data, sizing the transfer with rmi_f54_get_report_size():

report_size = rmi_f54_get_report_size(f54);
...
for (i = 0; i &lt; report_size; i += F54_REPORT_DATA_SIZE) {
    int size = min(F54_REPORT_DATA_SIZE, report_size - i);
    ...
    rmi_read_block(.., f54-&gt;report_data + i, size);
}

report_data is allocated once at probe from F54's own electrode counts (array3_size(f54->num_tx_electrodes, f54->num_rx_electrodes, sizeof(u16))), but rmi_f54_get_report_size() computes the size from drv_data->num_*_electrodes when those are set, i.e. from the F55 function's electrode counts. Both counts come straight from device queries (F54 and F55 each report up to 255 electrodes) and nothing constrains the F55 counts to the F54 ones.

A malicious or malfunctioning RMI4 device that reports larger F55 electrode counts than its F54 counts makes report_size exceed the allocation, so the read loop writes past report_data (and the V4L2 dequeue memcpy() then reads past it). On conforming hardware the F55 configured electrodes are a subset of the F54 physical electrodes, so report_size never exceeds the buffer and well-behaved devices are unaffected.

Record the allocation size and reject a report that does not fit, mirroring the existing zero-size check.

CVSS Base Scores

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