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nspawn: always use mode 555 for /sys

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When a network namespace is needed, /sys is mounted as tmpfs (see commit
d8fc6a000f for details).

But in this case mode 755 was used as initial permissions for /sys whereas the
default mode for sysfs is 555.

In practice using 755 doesn't have any impact because /sys is mounted read-only
too but for consistency, let's use the correct mode.

Fixes: #10050
This commit is contained in:
Franck Bui 2018-09-10 14:17:32 +02:00 committed by Lennart Poettering
parent da0da5eccf
commit 03d0f4b58e
1 changed files with 1 additions and 1 deletions
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2
src/nspawn/nspawn-mount.c
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@ -550,7 +550,7 @@ int mount_all(const char *dest,
/* Then we list outer child mounts (i.e. mounts applied *before* entering user namespacing) */
{ "tmpfs", "/tmp", "tmpfs", "mode=1777", MS_NOSUID|MS_NODEV|MS_STRICTATIME,
MOUNT_FATAL },
{ "tmpfs", "/sys", "tmpfs", "mode=755", MS_NOSUID|MS_NOEXEC|MS_NODEV,
{ "tmpfs", "/sys", "tmpfs", "mode=555", MS_NOSUID|MS_NOEXEC|MS_NODEV,
MOUNT_FATAL|MOUNT_APPLY_APIVFS_NETNS },
{ "sysfs", "/sys", "sysfs", NULL, MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV,
MOUNT_FATAL|MOUNT_APPLY_APIVFS_RO }, /* skipped if above was mounted */