PT-2026-90301 · Linux · Linux
CVE-2026-89585
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Published
2026-09-11
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Updated
2026-09-11
None
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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.
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Related Identifiers
Affected Products
Linux