diff options
| author | J. Bruce Fields <bfields@redhat.com> | 2012-08-29 15:21:58 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-21 09:27:57 -0700 |
| commit | 17170f0bbf4842a5a52dc61cf4d66a824fee9aaf (patch) | |
| tree | 252278e7cbb28c0f61e29c4ded2178a67dda4f5d /fs | |
| parent | db0a62c4cce1011c6412648cdd9c8767206befc7 (diff) | |
nfsd4: fix nfs4 stateid leak
commit cf9182e90b2af04245ac4fae497fe73fc71285b4 upstream.
Processes that open and close multiple files may end up setting this
oo_last_closed_stid without freeing what was previously pointed to.
This can result in a major leak, visible for example by watching the
nfsd4_stateids line of /proc/slabinfo.
Reported-by: Cyril B. <cbay@excellency.fr>
Tested-by: Cyril B. <cbay@excellency.fr>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index e79c24e232f4..a2f99d155840 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3783,6 +3783,7 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, memcpy(&close->cl_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t)); nfsd4_close_open_stateid(stp); + release_last_closed_stateid(oo); oo->oo_last_closed_stid = stp; /* place unused nfs4_stateowners on so_close_lru list to be |