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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2007-08-22 14:01:02 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-08-22 19:52:44 -0700
commitdf068464169a84a6a66c05d140f43a46d5eb6176 (patch)
tree906550a012e056940e88ebe76b1fde50dbfd6c41 /mm
parent74e8f346d59074147c564d9c1ffd6caf18286516 (diff)
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eCryptfs: fix lookup error for special files
When ecryptfs_lookup() is called against special files, eCryptfs generates the following errors because it tries to treat them like regular eCryptfs files. Error opening lower file for lower_dentry [0xffff810233a6f150], lower_mnt [0xffff810235bb4c80], and flags [0x8000] Error opening lower_file to read header region Error attempting to read the [user.ecryptfs] xattr from the lower file; return value = [-95] Valid metadata not found in header region or xattr region; treating file as unencrypted For instance, the problem can be reproduced by the steps below. # mkdir /root/crypt /mnt/crypt # mount -t ecryptfs /root/crypt /mnt/crypt # mknod /mnt/crypt/c0 c 0 0 # umount /mnt/crypt # mount -t ecryptfs /root/crypt /mnt/crypt # ls -l /mnt/crypt This patch fixes it by adding a check similar to directories and symlinks. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
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