CVE-2026-89585 | BDVDB-2026-372019 Detail
LinuxLinux
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/cd97b3c68fe3c06c8067cc59d7dff976c5b7ea04
- https://git.kernel.org/stable/c/22586432c1aba89d9bd33f3173408dac830f220b
- https://git.kernel.org/stable/c/6eaed64a32e550daf0dc9549742b3ab9e41d984f
- https://git.kernel.org/stable/c/fe7ba73dde94c5f413b1588cd444b49105015dda
- https://git.kernel.org/stable/c/84858671842ae5857b9ed1202b62f9045373dcd1
- https://git.kernel.org/stable/c/ff2fb3c1e60cb247ea3e28c0ea0bea81c18f7755
- https://git.kernel.org/stable/c/e3e3bf40916c1e810df03958cfa7ba6883cdce79
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.