OCTOBER 13, 2026
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Case File

CVE-2026-89888

HIGH · CVSS 7.8 EPSS 0.17%

Source: NVD + CISA KEV + EPSS · Published 2026-09-16 · Last synced 2026-10-13

CyberRota Analysis

AI-Generated

The vulnerability in the Linux kernel affects the ov02a10 driver, where a use-after-free condition can occur due to improper handling of endpoint parsing in the ov02a10_check_hwcfg() function. This flaw may lead to system instability or crashes, particularly during hardware configuration probing. Linux system administrators and developers working with affected kernel versions should prioritize applying the fix to mitigate potential exploitation risks.

CVE
CVE-2026-89888
Severity
HIGH
CVSS
7.8
EPSS
0.17%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: media: i2c: ov02a10: fix endpoint parsing use-after-free The ov02a10_check_hwcfg() function calls fwnode_handle_put(ep) immediately after allocating and parsing the endpoint. However, it subsequently calls fwnode_property_read_u32() using the same 'ep' handle, leading to a potential use-after-free. Additionally, reading the optional 'ovti,mipi-clock-voltage' property used to overwrite the 'ret' variable. If the property was missing, 'ret' would become negative, and this failure code would be incorrectly returned at the end of the function, causing probe to fail entirely. Fix the use-after-free by moving fwnode_property_read_u32() before the endpoint is parsed and freed. Avoid the error leak by not assigning the result of fwnode_property_read_u32() to 'ret'.