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NFSv4: Fix memory and state leak in _nfs4_open_and_get_state

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commit a974deee477af89411e0f80456bfb344ac433c98 upstream.

If we exit because the file access check failed, we currently
leak the struct nfs4_state. We need to attach it to the
open context before returning.

Fixes: 3efb972247 ("NFSv4: Refactor _nfs4_open_and_get_state..")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Trond Myklebust 2017-02-08 11:29:46 -05:00 • committed by Greg Kroah-Hartman
parent 3ee4f442e5
commit 52fb4bdcea
1 changed files with 1 additions and 1 deletions
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2
fs/nfs/nfs4proc.c
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@ -2452,6 +2452,7 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
ret = PTR_ERR(state);
if (IS_ERR(state))
goto out;
ctx->state = state;
if (server->caps & NFS_CAP_POSIX_LOCK)
set_bit(NFS_STATE_POSIX_LOCKS, &state->flags);
@ -2474,7 +2475,6 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
if (ret != 0)
goto out;
ctx->state = state;
if (d_inode(dentry) == state->inode) {
nfs_inode_attach_open_context(ctx);
if (read_seqcount_retry(&sp->so_reclaim_seqcount, seq))