CVEvulnerability

CVE-2021-47471

5.5 MEDIUM Published 2024-05-22 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2024-05-22
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476

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.

Affected configurations

• linux linux kernel (>= 5.10 < 5.10.76) • linux linux kernel (>= 5.11 < 5.14.15) • linux linux kernel 5.15

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References