CVE-2026-89585

Açıklama ve Etki

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.

Referanslar

• https://git.kernel.org/stable/c/84858671842ae5857b9ed1202b62f9045373dcd1
• https://git.kernel.org/stable/c/e3e3bf40916c1e810df03958cfa7ba6883cdce79
• https://git.kernel.org/stable/c/fe7ba73dde94c5f413b1588cd444b49105015dda
• https://git.kernel.org/stable/c/ff2fb3c1e60cb247ea3e28c0ea0bea81c18f7755

Güvenli Doğrulama Notu

Bu sayfa saldırı gerçekleştiren payload'lar çalıştırmaz. Doğrulama; etkilenen ürün/sürümün envanterden kontrol edilmesi, üretici güvenlik duyurusunun incelenmesi ve güncellemenin uygulanması üzerinden yapılmalıdır.