From: Jeff Layton jlayton@kernel.org
[ Upstream commit 50256e4793a5e5ab77703c82a47344ad2e774a59 ]
nfsd_lookup_dentry returns an export reference in addition to the dentry ref. Ensure that we put it too.
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2138866 Fixes: 876c553cb410 ("NFSD: verify the opened dentry after setting a delegation") Reported-by: Yongcheng Yang yoyang@redhat.com Signed-off-by: Jeff Layton jlayton@kernel.org Signed-off-by: Chuck Lever chuck.lever@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfsd/nfs4state.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 0bc36472f8b7..ddb2bf078fda 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -5313,6 +5313,7 @@ nfsd4_verify_deleg_dentry(struct nfsd4_open *open, struct nfs4_file *fp, if (err) return -EAGAIN;
+ exp_put(exp); dput(child); if (child != file_dentry(fp->fi_deleg_file->nf_file)) return -EAGAIN;