VULNERABILITY INTELLIGENCE
CVE-2021-47471
CVSS score5.5 MEDIUM
EPSS probability0.21%
CISA KEVNot currently listed
Published2024-05-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: drm: mxsfb: Fix NULL pointer dereference crash on unload The mxsfb->crtc.funcs may already be NULL when unloading the driver, in which case calling mxsfb_irq_disable() via drm_irq_uninstall() from mxsfb_unload() leads to NULL pointer dereference. Since all we care about is masking the IRQ and mxsfb->base is still valid, just use that to clear and mask the IRQ.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-476