[Lucid][SRU][PATCH 0/1] eCryptfs: Remove mmap from directory operations

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

SRU Justification:

mmap() on a directory should return ENODEV, but on ecryptfs mmap() on Lucid
returns a mmap'd address which causes a SIGBUS when accessed.

Fix: Apply the backported patch, open a directory on an ecryptfs filesystem
and mmap with mmap(NULL, 4096, PROT_READ, MAP_PRIVATE, fd, 0).  With the fix
this returns ENODEV, without it mmap returns a mmap'd region which causes a SIGBUS
when accessed.

BugLink: http://bugs.launchpad.net/bugs/400443

Colin Ian King (1):
  eCryptfs: Remove mmap from directory operations

 fs/ecryptfs/file.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)