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log when mox root process cannot forward signals to unprivileged child

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and give the mox.service permissions to send such signals.
This commit is contained in:
Mechiel Lukkien 2024-11-21 21:59:36 +01:00
parent 3d4cd00430
commit 32d4e9a14c
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2 changed files with 6 additions and 3 deletions
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7
mox-/forkexec_unix.go
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@ -59,8 +59,11 @@ func ForkExecUnprivileged() {
sigc := make(chan os.Signal, 1)
signal.Notify(sigc, os.Interrupt, syscall.SIGTERM)
go func() {
sig := <-sigc
p.Signal(sig)
for {
sig := <-sigc
err := p.Signal(sig)
pkglog.Check(err, "forwarding signal root to unprivileged process")
}
}()
st, err := p.Wait()

2
mox.service
View file

@ -23,7 +23,7 @@ ReadWritePaths=/home/mox/config /home/mox/data
ProtectKernelTunables=yes
ProtectControlGroups=yes
AmbientCapabilities=
CapabilityBoundingSet=CAP_SETUID CAP_SETGID CAP_NET_BIND_SERVICE CAP_CHOWN CAP_FSETID CAP_DAC_OVERRIDE CAP_DAC_READ_SEARCH CAP_FOWNER
CapabilityBoundingSet=CAP_SETUID CAP_SETGID CAP_NET_BIND_SERVICE CAP_CHOWN CAP_FSETID CAP_DAC_OVERRIDE CAP_DAC_READ_SEARCH CAP_FOWNER CAP_KILL
NoNewPrivileges=yes
RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX AF_NETLINK
ProtectProc=invisible