[systemd-devel] [PATCH] Do not clear parent mount flags when setting up namespaces

Topi Miettinen toiwoton at gmail.com
Thu Jan 1 06:57:45 PST 2015

On 01/01/15 14:49, Topi Miettinen wrote:
> Copy parent directory mount flags when setting up a namespace and
> don't accidentally clear mount flags later.

The problem here is that flags noexec, nosuid and nodev are cleared, so
the mounts always have exec, suid, dev flags enabled. With the patch
applied, namespace mounts keep what parent had, for example:

# grep /etc /proc/`pidof acpid`/mounts
/dev/sdb1 /etc ext4
ro,nosuid,nodev,noatime,discard,errors=remount-ro,data=ordered 0 0

-Topi Miettinen

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