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On Linux, mask "/proc/interrupts" and "/sys/devices/system/cpu/cpu<x>/thermal_throttle" inside containers by default. Privileged containers or containers started with --security-opt="systempaths=unconfined" are not affected. Mitigates potential Thermal Side-Channel Vulnerability Exploit (https://github.com/moby/moby/security/advisories/GHSA-6fw5-f8r9-fgfm). Also: improve integration test TestCreateWithCustomMaskedPaths() to ensure default masked paths don't apply to privileged containers. Refers to https://github.com/moby/moby/pull/49560 Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
22 lines
638 B
Go
22 lines
638 B
Go
/*
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Copyright 2025 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package securitycontext
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func possibleCPUs() []int {
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return nil
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}
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