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| author | Jeff Layton <jlayton@primarydata.com> | 2014-08-22 16:18:44 +0200 |
|---|---|---|
| committer | Jeff Layton <jlayton@primarydata.com> | 2014-10-07 20:06:12 +0200 |
| commit | bfe8602436c803c6d5e271d52cd985d491a7470a (patch) | |
| tree | 17b28bd50fd22ae65f90e9bd09cc5b14415a0049 /fs/nfsd | |
| parent | security: make security_file_set_fowner, f_setown and __f_setown void return (diff) | |
| download | linux-bfe8602436c803c6d5e271d52cd985d491a7470a.tar.xz linux-bfe8602436c803c6d5e271d52cd985d491a7470a.zip | |
locks: close potential race in lease_get_mtime
lease_get_mtime is called without the i_lock held, so there's no
guarantee about the stability of the list. Between the time when we
assign "flock" and then dereference it to check whether it's a lease
and for write, the lease could be freed.
Ensure that that doesn't occur by taking the i_lock before trying
to check the lease.
Cc: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/nfsd')
0 files changed, 0 insertions, 0 deletions