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| author | James Morse <[email protected]> | 2022-02-08 16:08:13 +0000 |
|---|---|---|
| committer | James Morse <[email protected]> | 2022-02-16 13:22:26 +0000 |
| commit | dee435be76f4117410bbd90573a881fd33488f37 (patch) | |
| tree | 6e4e6dd78356872f838e6ab61887efa38a412496 /net/lapb/lapb_subr.c | |
| parent | bd09128d16fac3c34b80bd6a29088ac632e8ce09 (diff) | |
arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2
Speculation attacks against some high-performance processors can
make use of branch history to influence future speculation as part of
a spectre-v2 attack. This is not mitigated by CSV2, meaning CPUs that
previously reported 'Not affected' are now moderately mitigated by CSV2.
Update the value in /sys/devices/system/cpu/vulnerabilities/spectre_v2
to also show the state of the BHB mitigation.
Reviewed-by: Catalin Marinas <[email protected]>
Signed-off-by: James Morse <[email protected]>
Diffstat (limited to 'net/lapb/lapb_subr.c')
0 files changed, 0 insertions, 0 deletions