Searched hist:"7 ee2cb7f32b299c2b06a31fde155457203e4b7dd" (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/fs/nfs/ |
| H A D | dir.c | diff 7ee2cb7f32b299c2b06a31fde155457203e4b7dd Mon May 18 16:41:40 CDT 2009 Frank Filz <ffilzlnx@us.ibm.com> nfs: Fix NFS v4 client handling of MAY_EXEC in nfs_permission.
The problem is that permission checking is skipped if atomic open is
possible, but when exec opens a file, it just opens it O_READONLY which
means EXEC permission will not be checked at that time.
This problem is observed by the following sequence (executed as root):
mount -t nfs4 server:/ /mnt4
echo "ls" >/mnt4/foo
chmod 744 /mnt4/foo
su guest -c "mnt4/foo"
Signed-off-by: Frank Filz <ffilzlnx@us.ibm.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
Tested-by: Eugene Teo <eugeneteo@kernel.sg>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|