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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-12-28 19:30:05 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-14 13:16:26 +0200 |
| commit | 53302082836607e38d4cb7e239dbd77ff5d8b137 (patch) | |
| tree | 7eff9d7d7b60af77b73100fe8718aacfa7596da1 /lib/test_user_copy.c | |
| parent | cb1fb15c8355eb8118fd9f223aea12574985aad3 (diff) | |
NFS: Ensure we revalidate attributes before using execute_ok()
commit 5c5fc09a1157a11dbe84e6421c3e0b37d05238cb upstream.
Donald Buczek reports that NFS clients can also report incorrect
results for access() due to lack of revalidation of attributes
before calling execute_ok().
Looking closely, it seems chdir() is afflicted with the same problem.
Fix is to ensure we call nfs_revalidate_inode_rcu() or
nfs_revalidate_inode() as appropriate before deciding to trust
execute_ok().
Reported-by: Donald Buczek <buczek@molgen.mpg.de>
Link: http://lkml.kernel.org/r/1451331530-3748-1-git-send-email-buczek@molgen.mpg.de
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/test_user_copy.c')
0 files changed, 0 insertions, 0 deletions