eCryptfs

  1. Bug #345766
  2. Comment #1

Comment 1 for bug 345766

Revision history for this message
Tyler Hicks (tyhicks) wrote :

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Subject: [PATCH] eCryptfs: NULL crypt_stat dereference during lookup

If ecryptfs_encrypted_view or ecryptfs_xattr_metadata were being
specified as mount options, a NULL pointer dereference was possible
during lookup.

This patch moves the crypt_stat assignment into
ecryptfs_lookup_and_interpose_lower(), ensuring that crypt_stat
will not be NULL before we attempt to dereference it.

Thanks to Dan Carpenter and his static analysis tool, smatch, for
finding this bug.

Signed-off-by: Tyler Hicks <email address hidden>
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Sent upstream: http://thread.gmane.org/gmane.linux.kernel/809706