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Base: Add "tty" group and make /dev/tty* be root:tty mode 610

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This fixes an issue where anyone could snoop on the virtual consoles.
This commit is contained in:
Andreas Kling 2020-01-04 12:40:12 +01:00
parent 4f4dc47ec3
commit 20ac4e44d1
2 changed files with 5 additions and 0 deletions
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4
Kernel/build-root-filesystem.sh
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@ -34,6 +34,10 @@ mknod mnt/dev/ttyS0 c 4 64
mknod mnt/dev/ttyS1 c 4 65
mknod mnt/dev/ttyS2 c 4 66
mknod mnt/dev/ttyS3 c 4 67
for tty in 0 1 2 3 S0 S1 S2 S3; do
chmod 620 mnt/dev/tty$tty
chown 0:2 mnt/dev/tty$tty
done
mknod mnt/dev/random c 1 8
mknod mnt/dev/null c 1 3
mknod mnt/dev/zero c 1 5