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(parent: d837a49) | patch
ovl: dilute permission checks on lower only if not special file
authorVivek Goyal <vgoyal@redhat.com>
Wed, 13 Jul 2016 15:00:14 +0000 (11:00 -0400)
committerMiklos Szeredi <mszeredi@redhat.com>
Fri, 29 Jul 2016 10:05:24 +0000 (12:05 +0200)
commite29841a0ab3d03e77313abd8fb4c16e80fb26e29
tree2fa92fa454d171915a7cfa2ee2800703567cffd4tree | snapshot (tar.gz zip)
parentd837a49bd57f1ec2f6411efa829fecc34002b110commit | diff
ovl: dilute permission checks on lower only if not special file

Right now if file is on lower/, we remove MAY_WRITE/MAY_APPEND bits from
mask as lower/ will never be written and file will be copied up. But this
is not true for special files. These files are not copied up and are opened
in place. So don't dilute the checks for these types of files.

Reported-by: Dan Walsh <dwalsh@redhat.com>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
fs/overlayfs/inode.c diff | blob | blame | history