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Intel vydal aktualizaci mikrokódu pro Linux od Born - iucode-tool -k -S microcode.dat iucode-tool: cpuid kernel driver unavailable,...

iucode-tool -k -S microcode.dat
iucode-tool: cpuid kernel driver unavailable, cannot scan system processor signatures
iucode-tool: Uploading selected microcodes to: /dev/cpu/microcode

CVE-2017-5753 [bounds check bypass] aka 'Spectre Variant 1'
> STATUS: VULNERABLE (heuristic to be improved when official patches become available)

CVE-2017-5715 [branch target injection] aka 'Spectre Variant 2'
> STATUS: VULNERABLE (IBRS hardware + kernel support OR kernel with retpoline are needed to mitigate the vulnerability)

Vybere vsechny.

Proc neexistuje /dev/cpu/x/cpuid.

CPU je Intel Xeon Processor E5-2690 v4

Jedna se o debian old stable (8) - Linux diamond 3.16.0-5-amd64 #1 SMP Debian 3.16.51-3+deb8u1 (2018-01-08) x86_64 GNU/Linux

iucode-tool -lSvvv microcode.dat
iucode-tool: /dev/cpu/0/cpuid: returned error status on open(): No such file or directory
iucode-tool: cpuid kernel driver unavailable, cannot scan system processor signatures
iucode-tool: microcode bundle 1: microcode.dat (1613824 bytes)
iucode-tool: processed 164 valid microcode(s), 164 signature(s), 164 unique signature(s)
selected microcodes:
...
...
iucode-tool: selected 164 microcode(s), 164 signature(s)