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 09:32:38 -0700 |
| commit | 977469fff176739539ac78e2977d50214e2bdcf6 (patch) | |
| tree | 31bc525a1bc100487be83adaf70368a208ea8af7 /fs | |
| parent | 55db1c6363a84f7dcf9479ec791e390c0758aa05 (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 8318cc61ce7..5b3224ce82e 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3782,6 +3782,7 @@ 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; if (list_empty(&oo->oo_owner.so_stateids)) { |