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VULNERABILITIES

CVE-2026-89585 Details

Description

In the Linux kernel, the following vulnerability has been resolved: auxdisplay: charlcd: cancel backlight work on registration failure With CONFIG_CHARLCD_BL_FLASH, charlcd_init() schedules bl_work before charlcd_register() calls misc_register(). If registration fails, the caller frees the charlcd object while delayed work still contains its address. Add charlcd_deinit() to cancel the delayed work and turn the backlight off. Use it for both registration rollback and normal unregistration.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/22586432c1aba89d9bd33f3173408dac830f220b kernel.org
https://git.kernel.org/stable/c/6eaed64a32e550daf0dc9549742b3ab9e41d984f kernel.org
https://git.kernel.org/stable/c/84858671842ae5857b9ed1202b62f9045373dcd1 kernel.org
https://git.kernel.org/stable/c/cd97b3c68fe3c06c8067cc59d7dff976c5b7ea04 kernel.org
https://git.kernel.org/stable/c/e3e3bf40916c1e810df03958cfa7ba6883cdce79 kernel.org

see all 7 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-89585
NVD Published Date:
Sep 11, 2026
NVD Last Modified:
Sep 14, 2026
Source:
kernel.org
CVE-2026-89585 Details - Not Deferred