Some Intel CPUs never got early microcode on FreeBSD
Brief
Late loading still worked.
Notes
FreeBSD-EN-26:20.microcode. Errata, not an SA. An inverted bounds check treated the extended signature table as absent. 19 CPU signatures / 58 signature-plus-platform combinations in the packaged Intel file, Alder Lake through some Core Ultra. AMD is not affected. Systems whose signature matches an image’s primary header are not affected.
releng/15.1 a0e96483e2ce. releng/15.0 4a66af1ce037. releng/14.4 c905b341204e. stable/15 2a1eaaf331f7. stable/14 38cbd2588f0b. In 15.1-p3, 15.0-p13, and 14.4-p9. Tags are this batch, not a separate release story.
Commit a0e96483e2ce