CVE - CVE-2021-47471

CVE-ID
CVE-2021-47471	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/3cfc183052c3dbf8eae57b6c1685dab00ed3db4a URL:https://git.kernel.org/stable/c/3cfc183052c3dbf8eae57b6c1685dab00ed3db4a MISC:https://git.kernel.org/stable/c/b0e6db0656ddfd8bb57303c2ef61ee1c1cc694a8 URL:https://git.kernel.org/stable/c/b0e6db0656ddfd8bb57303c2ef61ee1c1cc694a8 MISC:https://git.kernel.org/stable/c/f40c2281d2c0674d32ba732fee45222d76495472 URL:https://git.kernel.org/stable/c/f40c2281d2c0674d32ba732fee45222d76495472
Assigning CNA
kernel.org
Date Record Created
20240522	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240522)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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