diff options
author | J. Bruce Fields <bfields@redhat.com> | 2013-04-15 16:03:46 -0400 |
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committer | J. Bruce Fields <bfields@redhat.com> | 2013-04-26 16:18:15 -0400 |
commit | aa387d6ce15330e09037947147c5a5a2ba42a0e8 (patch) | |
tree | ab9ec0cbd2636e3089db7a10ec49756cce702820 /include/net/iucv | |
parent | 030d794bf49855f5e2a9e8dfbfad34211d1eb08b (diff) |
nfsd: fix EXDEV checking in rename
We again check for the EXDEV a little later on, so the first check is
redundant. This check is also slightly racier, since a badly timed
eviction from the export cache could leave us with the two fh_export
pointers pointing to two different cache entries which each refer to the
same underlying export.
It's better to compare vfsmounts as the later check does, but that
leaves a minor security hole in the case where the two exports refer to
two different directories especially if (for example) they have
different root-squashing options.
So, compare ex_path.dentry too.
Reported-by: Joe Habermann <joe.habermann@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/net/iucv')
0 files changed, 0 insertions, 0 deletions