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23 October 2021, 00:29:24 UTC
Revision 9fe79d7600497ed8a95c3981cbe5b73ab98222f0 authored by Tyler Hicks on 12 June 2012, 18:17:01 UTC, committed by Tyler Hicks on 03 July 2012, 23:34:09 UTC 
eCryptfs: Properly check for O_RDONLY flag before doing privileged open
 
If the first attempt at opening the lower file read/write fails,
eCryptfs will retry using a privileged kthread. However, the privileged
retry should not happen if the lower file's inode is read-only because a
read/write open will still be unsuccessful.

The check for determining if the open should be retried was intended to
be based on the access mode of the lower file's open flags being
O_RDONLY, but the check was incorrectly performed. This would cause the
open to be retried by the privileged kthread, resulting in a second
failed open of the lower file. This patch corrects the check to
determine if the open request should be handled by the privileged
kthread.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
1 parent ff826b2
History
Tip revision: 9fe79d7600497ed8a95c3981cbe5b73ab98222f0 authored by Tyler Hicks on 12 June 2012, 18:17:01 UTC
eCryptfs: Properly check for O_RDONLY flag before doing privileged open
Tip revision: 9fe79d7
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.gitignore -rw-r--r-- 1014 bytes
.mailmap -rw-r--r-- 4.4 KB
COPYING -rw-r--r-- 18.3 KB
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MAINTAINERS -rw-r--r-- 208.2 KB
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