diff options
| author | J. Bruce Fields <bfields@redhat.com> | 2012-08-30 00:21:58 +0200 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2012-09-10 16:55:14 +0200 |
| commit | cf9182e90b2af04245ac4fae497fe73fc71285b4 (patch) | |
| tree | a4659b22d9d2b35a168cbcf7f7c057412129d0c1 | |
| parent | nfsd: document kernel interfaces for nfsd configuration (diff) | |
| download | linux-cf9182e90b2af04245ac4fae497fe73fc71285b4.tar.xz linux-cf9182e90b2af04245ac4fae497fe73fc71285b4.zip | |
nfsd4: fix nfs4 stateid leak
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>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -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 5f1a91a9cd35..6686e747223f 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3766,6 +3766,7 @@ 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)) { |