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Magisk breaks security restrictions on getting MAC address #7636

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ccppcpcpc opened this issue Dec 19, 2023 · 3 comments
Closed

Magisk breaks security restrictions on getting MAC address #7636

ccppcpcpc opened this issue Dec 19, 2023 · 3 comments
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confirmed Issue confirmed to exist and the reason is known core This issue is related to Magisk Core

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@ccppcpcpc
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Device: xiaomi 9se
Android version: 11
Magisk version name: v25.2
Magisk version code: 25201

I previously found a library on github that can get mac addresses via netlink, but after Android 11, this method doesn't work due to selinux limitations (log: avc nlmsg_readpriv denied, class netlink_route_socket). After flashing magisk boot, this method takes effect again and will not report avc denied.

I have studied magisk for a long time and have not found out what causes it. Does anyone know what causes it?

the library:
https://github.com/w296488320/getMacForNetlink
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@canyie canyie changed the title Q: Magisk about selinux permission Magisk breaks security limits that PREVEN Dec 20, 2023
@canyie canyie changed the title Magisk breaks security limits that PREVEN Magisk breaks security restrictions on getting MAC address Dec 20, 2023
@canyie canyie added confirmed Issue confirmed to exist and the reason is known core This issue is related to Magisk Core labels Dec 20, 2023
@canyie canyie reopened this Dec 20, 2023
@yujincheng08
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https://cs.android.com/android/_/android/platform/external/selinux/+/bc91e46ad015418f591eb901223107deac61472c
https://cs.android.com/android/_/android/platform/external/selinux/+/af9822af6f4bb8b3a740b0e62435d3506a8678fa

Repository owner locked as too heated and limited conversation to collaborators Dec 20, 2023
@topjohnwu
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Fixed with e30bda6

@vvb2060 vvb2060 mentioned this issue Feb 10, 2024
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Repository owner unlocked this conversation Feb 10, 2024
@vvb2060 vvb2060 mentioned this issue Jul 2, 2024
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confirmed Issue confirmed to exist and the reason is known core This issue is related to Magisk Core
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@yujincheng08 @topjohnwu @ccppcpcpc @canyie @MagiskBot