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| author | Christian Brauner <[email protected]> | 2021-05-11 14:30:15 +0000 |
|---|---|---|
| committer | Christian Brauner <[email protected]> | 2021-05-12 12:13:16 +0000 |
| commit | 2ca4dcc4909d787ee153272f7efc2bff3b498720 (patch) | |
| tree | 730c43aa2706393f338200da6eb1ba333487d244 /tools/perf/scripts/python/compaction-times.py | |
| parent | Linux 5.13-rc1 (diff) | |
| download | kernel-2ca4dcc4909d787ee153272f7efc2bff3b498720.tar.gz kernel-2ca4dcc4909d787ee153272f7efc2bff3b498720.zip | |
fs/mount_setattr: tighten permission checks
We currently don't have any filesystems that support idmapped mounts
which are mountable inside a user namespace. That was a deliberate
decision for now as a userns root can just mount the filesystem
themselves. So enforce this restriction explicitly until there's a real
use-case for this. This way we can notice it and will have a chance to
adapt and audit our translation helpers and fstests appropriately if we
need to support such filesystems.
Cc: Christoph Hellwig <[email protected]>
Cc: Al Viro <[email protected]>
Cc: [email protected]
CC: [email protected]
Suggested-by: Seth Forshee <[email protected]>
Signed-off-by: Christian Brauner <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/compaction-times.py')
0 files changed, 0 insertions, 0 deletions