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| author | Vivek Goyal <vgoyal@redhat.com> | 2016-07-01 20:34:25 (GMT) |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2016-07-04 14:49:48 (GMT) |
| commit | 07a2daab49c549a37b5b744cbebb6e3f445f12bc (patch) | |
| tree | b4f7c6d92ba68a6328c64d2ce28e48f9da99c78f /block | |
| parent | b99c2d913810e56682a538c9f2394d76fca808f8 (diff) | |
| download | linux-07a2daab49c549a37b5b744cbebb6e3f445f12bc.tar.xz | |
ovl: Copy up underlying inode's ->i_mode to overlay inode
Right now when a new overlay inode is created, we initialize overlay
inode's ->i_mode from underlying inode ->i_mode but we retain only
file type bits (S_IFMT) and discard permission bits.
This patch changes it and retains permission bits too. This should allow
overlay to do permission checks on overlay inode itself in task context.
[SzM] It also fixes clearing suid/sgid bits on write.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Reported-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Fixes: 4bacc9c9234c ("overlayfs: Make f_path always point to the overlay and f_inode to the underlay")
Cc: <stable@vger.kernel.org>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions